For the years 1971 to 1984 the data source is
World Bank.
For the years 2002 to 2003 the data source is
Ember.
For the years 2004 to 2007 the data source is
IEA.
For the year 2023/2024 the data source is
aggregated data from the last 12 months (2023-07 to 2024-06).
For the months 2023-07 to 2024-06 the data source is
IEA.