Source: World Trade Organisation (WTO) MFN tariffs
When single markets and customs unions fail we have to fall back on the rules of the World Trade Organisation. MFN (Most Favoured Nation) tariffs are what countries promise to impose on imports from other members of the WTO, unless the country is part of a preferential trade agreement (such as a free trade area or customs union). They are listed annually in the WTO Trade Policy Review. For a full list go to page 43: Table 3.2, Summary statistics of MFN tariffs 2014. Tariffs (simple averages) range from 1.9% on non-electrical machinery through 20.2% on animal products to 36.1% on dairy products (up from 31.7% a year earlier).