Volume indices of industrial production characterize changes in the volume of industrial production during the reference period in comparison with the base period.


Main industrial groupings are formed as an industrial sector Section (B, C, D) intermediate, by regrouping the 3-digit groups in compliance with the Statistical Classification of Economic Activities (NACE Rev. 2).

There are 5 basic production groups:

  1. intermediate goods;
  2. energy;
  3. capital goods;
  4. consumer durables;
  5. consumer nondurables.

Data calculated by taking into account the volume of actual output in each month.

The volume index of industrial production describes changes in the volume of industrial production in the reference period compared with the base period. Calculations of industrial production volume index includes sections B (Mining and quarrying), C (Manufacturing) and D (Electricity, gas, steam and air conditioning supply) (excluding group 35.3 - Steam and air conditioning supply), of the NACE Rev. 2 classification.

Data availability

Dissemination format and Release calendar

Monthly data are published on the 34th day after the end of the reference period according to divisions of NACE Rev. 2, but data of manufacture of food products (NACE Rev. 2, Section C, Division 10), manufacture of wood (NACE Rev. 2, Section C, Division 16) and articles of wood (NACE 16) – according to groups of NACE Rev. 2. Industry monthly/quarterly data»

Quarterly data on the 1st quarter in the database are published in May, on the 2nd quarter – in August, on the 3rd quarter – in November and on the 4th quarter – in February of the next year. Industry monthly/quarterly data»

Annual data are published according data release calendar. Industry annual data»

News Releases

Date Title
04.06.2018 Industrial production in April 2018
04.07.2018 Industrial production in May 2018


Download CSB publications on various time periods (starting from 2007) in section E-publications.


Data are available also in statistical yearbooks and monthly bulletins. Statistical yearbooks and monthly bulletins are available in E-publication section under topic "General statistics".

Theme Title Release datesort icon ZIP/PDF
Volume indices of industrial production Industrial production output 2017/01 (only in Latvian) 27.02.2017
Volume indices of industrial production Industrial production volume 2016/04 (only in latvian) 22.11.2016
Volume indices of industrial production Industrial production volume 2016/03 (only in Latvian) 26.08.2016
Volume indices of industrial production Industrial production volume 2016/01 (only in Latvian) 26.02.2016
Volume indices of industrial production Industrial production volume 2015/04 (only in Latvian) 19.11.2015
Volume indices of industrial production Industrial production volume 2015/03 (only in Latvian) 18.08.2015
Volume indices of industrial production Industrial production volume 2015/02 (only in Latvian) 26.05.2015
Volume indices of industrial production Industrial production volume 2015/01 (only in Latvian) 27.02.2015
Volume indices of industrial production Industrial production volume 2014/04 (only in Latvian) 24.11.2014
Volume indices of industrial production Industrial production volume 2014/03 (only in Latvian) 18.08.2014
Volume indices of industrial production Industrial production volume 2014/02 (only in Latvian) 19.05.2014
Volume indices of industrial production Industrial production volume 2014/01 (only in Latvian) 16.05.2014
Volume indices of industrial production Industrial Production Volume 2013/04 (only in Latvian) 21.11.2013
Volume indices of industrial production Industrial Production Volume 2013/03 (only in Latvian) 19.08.2013
Volume indices of industrial production Industrial Production Volume 2013/02 (only in Latvian) 23.05.2013


Data are collected and published in compliance with:

  • Statistical Classification of Economic Activities (NACE Rev. 2);
  • Main industrial grouping (MIG 2009).

A Classification Catalogue with classification codes and their explanations has been published on the CSB website.

Customised data sets

If you would like to obtain statistical data that are not available in publications or in the CSB online data base, please send us an information request:
 - postal mail: 1 Lāčplēša Street, Riga, Latvia, LV-1301;
 - e-mail: info [at] csb [dot] gov [dot] lv;
 - visiting Information centre.

Read more

Additional information

In some cases, due to specifics of electronic data processing technologies and rounding adjustments, slight discrepancies may occur between totals and sums of components.

Data collection

Survey method and data source

Data on volume indices of industrial production are obtained with the help of enterprise survey, building a threshold sample. Data are collected from the CSB monthly statistical report form 1-r "Survey of industrial activity".

Information on industrial production output during the reference period at current prices is collected each month until the 25th date, according to the classes of Statistical Classification of Economic Activities (NACE Rev. 2).

Target population

Data are collected from economically active enterprises if their main or secondary activity in compliance with NACE Rev. 2 is Mining and quarrying (Section B), Manufacturing (Section C), Electricity, gas, stream and air conditioning (Section D) excluding group 35.3 "Steam and air conditioning supply" and if 20 and more persons are employed in industrial production or industrial turnover in previous year comprised EUR 430 thousand or more.

Sample size

In 2018, the number of enterprises surveyed monthly comprised 1 417. In 2016, their share in the total volume of industrial production exceeded 80%.

Year Sample size
(per month)
2018 1 417
2017 1 454
2016 1 378
2015 1 361
2014 1 332
2013 1 339
2012 1 280
2011 1 293
2010 1 350
2009 1 570
2008 1 450

Statistical processing

Calculation methods

Calculation of Industrial Production Index (henceforth – IPI) is based on the chain index method; within the framework of it the average monthly volume of production manufactured (at constant prices) previous year is used as a calculation basis and the value added of enterprises manufactured two years ago by NACE sections, chapters, groups and classes is used as weights. IPI is calculated by recalculating production output indicator at constant prices with the help of producer price indices. Weights are changed every year, thus changes in the structure of industry are taken into account.

Calendar and seasonal adjustment

A time series is a sequence of observations collected at regular time intervals, for example, a monthly time series. It characterises indicator changes or development thereof.  Seasonality and calendar effects are present in a large number of economic time series.

Seasonality or seasonal fluctuations of time series mean those movements, which recur with similar intensity in the same season each year. For example, each year Christmas shopping time can be observed in time series reflecting retail sales statistics. Change of seasons, social habits and influence of institutional factors are among the main causes of seasonality.

The calendar effects cover influence of calendar on time series. It is impact left by differing number of working days (or Mondays, Tuesdays and other days of the week) in months on changes of indicator. For example, number of working days differing among the months may affect goods produced time series.

When the time series are influenced by seasonality or calendar effects, it may be difficult to get clear understanding on indicator changes over the time.  Seasonal adjustment is made to eliminate seasonal fluctuations and calendar effects in time series.

As a result seasonally adjusted time series, from which seasonality and calendar effects have been removed, are produced. It means that seasonally adjusted time series provide an estimate for what is “new” in the series, for example turning points in trends, business cycle or irregular component.  Moreover seasonal adjustment results in calendar adjusted time series, in which calendar effects or varying number of working days in months has been eliminated. Specifics of seasonally adjusted statistics allows improving data comparability over time:

  • Seasonally adjusted time series do not contain seasonal fluctuations and calendar effects, thus it is possible to compare, for example, data on the current month with the previous month's data.
  • Calendar adjusted time series are not influenced by calendar effects and are used to compare, for example, statistics on current month with the data on corresponding month of the previous year.

The seasonal adjustment is made taking into account seasonal adjustment guidelines developed by the European Statistical System.



Seasonal adjustment method


Last model revision

For data of January 2018

Base period

2015 is base or reference period (2015 = 100).

Data revision

Data revisions are carried out, if a respondent updates, supplements or corrects data on any of the previous periods, or if the methodology changes.

Published indices may be revised if the corrections made to the calculations have significant influence on the total industrial production index.


Comparability over time

Data are available since 2000.

International comparability


The Statistical Office of the European Union (Eurostat) on its home page publishes information on industry in EU and in each individual country: Statistics/ Industry, trade and services/ Short-term business statistics/ Database/ Industry.


International Monetary Fund

The International Monetary Fund (IMF) on its home page publishes a methodological description of industry and data on volume indices of industrial production.



Confidentiality of the information provided by respondents is protected by the Section 17 of the Statistics Law stipulating rights and obligations of the Central Statistical Bureau of Latvia and other state authorities producing official statistics. Read more

Contact person on methodology

Name Surname Position Phone number Email
Mārīte Baranova Senior Officer +371 67366830 Marite [dot] Baranova [at] csb [dot] gov [dot] lv

Last update


Manufacturing output and turnover

Explanation of symbols


Magnitude zero


Less than half of the unit employed


Data not available or too uncertain for presentation


Figure not applicable because column heading and stub line make entry impossible, absurd or meaningless


Data not released for confidentiality reasons

If data are absolute numbers


Magnitude zero