Law and legislation 1,241 Taxation 637 Foreign economic relations 225 Tariff 177 Income tax 160 Social security 136 Finance 119 Budget 107 Foreign trade regulation 103 Medicare 91 Appropriations and expenditures 88 Duty-free importation 82 Debts, Public 78 Commercial policy 77 Free trade 68 Commerce 65 Medical care 65 Health insurance 60 Tax administration and procedure 56 Economic policy 52 Emigration and immigration law 50 Government policy 50 Tariff preferences 50 Unemployment insurance 50 Favored nation clause 48 Excise tax 47 Armed Forces 46 Emigration and immigration 46 Pensions 42 Economic aspects 40