a downward trend registered since 1999, the tax burden in 2007 (43.3% of GDP) remains at a high level, both historically and in comparison with other countries. OECD countries have experienced an increase in the tax burden since the mid-1960s comparable to that of France, rising from 25% of the GDP in 1965 to 36% in 2005. That of the countries of the European Union has increased by nearly 12 percentage points of GDP over the period. Efforts to control the increase in the tax burden have been made by the states of the OECD: the tax rate decelerated during the 90s and has decreased slightly since 2000. This is why France continues to be among the OECD countries whose tax rate is the highest. Taxes account for 45% of GDP against 37% on average in OECD countries. The overall rate of social security and tax on the average wage in 2005 was 71.3% of gross salary, the highest of the OECD. The levels of social security contributions are particularly high (16.3% of revenue against 9.4% on average for OECD). The social security budgets are larger than the budget of the national government. The budgets of both the national government and social security organizations run deficits. List of taxes Taxes in France can be classified according to the institution which collects and benefit from them and to the people who pay them. Taxes are monetary benefits imposed on people according to their capacities and without return of benefit, for the purpose of public expenditure to achieve economic and social goals set by the government. As for tariffs, they are different from taxes because of their strictly economic aspect; their purpose is to protect the domestic market. However, some charges levied by the customs administration are taxes: the value added tax levied on goods from non-members of the European Union, the tax on petroleum products, which applies regardless of the origin of products, and other taxes. social security contributions are collected for social protection. Some other taxes, based on personal income, are allocated to social agencies and do not give taxpayers the right to benefit from them. Taxes on production and importation These taxes, collected by public administrations or by the institutions of the EU, apply to the production and the consumption of goods and of services. These taxes are independent from profits. They include taxes on the products and others