Many people have passed through Wyoming, but relatively few have come to stay. Not until the 1970s, a time of rapid economic development, did the picture change. Between 1970 and 1983, Wyoming gained a net total of 45,500 residents through migration. In the 1980s, the state's total population grew only by 1.1%, primarily offset by the net loss from migration of 52,000 persons. The urban population increased from 62.8% of the state's total in 1980 to 65% in 1990. Between 1990 and 1998, Wyoming had a net loss of less than 500 in domestic migration but a net gain of 2,000 in international migration. In 1998, the state admitted 159 foreign immigrants. Between 1990 and 1998, the state's overall population increased 6%. In the period 1995–2000, 72,834 people moved into the state and 85,361 moved out, for a net loss of 12,527, many of whom moved to Colorado.