Until 2008 data according to PKD2004, from 2009 according to PKD2007. Industrial sector: PKD2004 - direct consumption in sections D and F, PKD2007 - direct consumption in sections C and F. Energy sector: PKD2004 - total consumption in division 40 + direct consumption in section C, PKD2007 - total consumption in division 35 + direct consumption in section B. Transport sector: PKD2004 - section I, PKD2007 - section H. Agriculture: PKD2004 - section A and B + consumption for agricultural purposes in small individual farms, PKD2007 - section A + consumption for agricultural purposes in small individual farms . Other consumption (including the service sector): PKD2004 - division 41 + recipients apart from mentioned above, PKD2007 - division 36 + recipients apart from mentioned above. Indicators relating to the number and structure of the population (gender, age group) since 2010 have been recalculated in accordance with the balance sheet prepared on the basis of the results of the National Census 2011. Indicators relating to the number and structure of the population (gender, age group) since 2020 have been recalculated in accordance with the balance sheet prepared on the basis of the results of the National Census 2021.The indicator "Energy consumption in the industrial sector per 1 million of gross value added in industry" uses the international OECD/Eurostat classification (including manufacturing – section C and construction – section F). The indicator "Energy consumption in industry per 1 million PLN of gross value added in industry" is based on the national balance methodology (sections B–E), which aligns with the full definition of industry according to the PKD (Polish Classification of Activity) system.