The indicator measures how well a country has upheld its financial obligations to the core budget of the UNFCCC. Countries were evaluated according to their "Status of Contributions" reports from 1996 and 2005. A score of 1 is given if the country has paid all due payments up to the present year and at least 50 percent of the amount for the present year. The score decreases linearly to a score of 0 if the country has paid no contributions.