Before the United States officially took over the government, it had already begun cutting tariffs on American goods entering Cuba, without granting the same rights to Cuban goods going to the United States. Government payments had to be made in U.S. dollars. In spite of the Foraker Amendment, which prohibited the U.S. occupation government from granting privileges and concessions to American investors, the Cuban economy was soon dominated by American capital. The growth of American sugar estates was so quick that in 1905 nearly 10% of Cuba's total land area belonged to American citizens. By 1902, American companies controlled 80% of Cuba's ore exports and owned most of the sugar and cigarette factories.