In the period since the establishment of the GATT, great progress has been made in reducing tariffs on industrial goods. Very little attempt was made to tackle the problem of nontariff barriers until the seventh (Tokyo Round) of 1973-9. Similarly, before the successful conclusion of the recent Uruguay Round, trade in agricultural goods was largely exempt from GATT rules. One result of this tariff-cutting process is that tariffs are now much less important as an impediment to trade in industrial products. Increasingly, other types of barrier have become more important.