 Women, however, make up 27% of the Iranian labor force, and the percentage of all Iranian women who are economically active has more than doubled from 6.1% in 1986 to 13.7% in 2000.In terms of health, life expectancy went up by eleven years between 1980 and 2000 for both Iranian men and women.With respect to family planning, "levels of childbearing have declined faster than in any other country," going from 5.6 births per woman in 1985 to 2.0 in 2000, a drop accomplished by a voluntary, but government-sponsored, birth control program.