In socio-economic terms, the Philippines made solid progress in this period. Foreign trade had amounted to 62 million pesos in 1895, 13% of which was with the United States. By 1920, it had increased to 601 million pesos, 66% of which was with the United States. A health care system was established which, by 1930, reduced the mortality rate from all causes, including various tropical diseases, to a level similar to that of the United States itself. The practices of slavery, piracy and headhunting were suppressed but not entirely extinguished.