The figure refers to a theoretical 'aggregated new EU Member States base-year' as 100 in order to allow a consistent analysis of greenhouse gas emission trends and projections. This base-year has no legal status. It is 1990 for most Member States for CO2, methane (CH4) and nitrous oxide (N2O) but 1995 for fluorinated gases, with the following exceptions: The base year for CO2, CH4 and N2O for Hungary is the average of 1985-1987, for Slovenia 1986 and for Poland 1988. This means that the value for 1990 is not exactly 100. Due to lack of data, Cyprus and Malta are not included.
