Endowed with forest, mineral, and fish resources, Fiji is one of the most developed of the Pacific island economies, though still with a large subsistence sector. Some progress was experienced by this sector when Marion M. Ganey introduced credit unions to the islands in the 1950s. Natural resources include timber, fish, gold, copper, offshore oil, and hydropower. Fiji experienced a period of rapid growth in the 1960s and 1970s but stagnated in the 1980s. The coups of 1987 caused further contraction.