Of the over 6 million students earning college credit at community colleges, 1.7 million (27 percent) are parents. Of those, about 1 million (16 percent) are single parents, more than twice the proportion at 4-year institutions. Three-quarters of single parents in college are women. One study of student parents attending community college found that over 80 percent reported that the availability of child care was very important in the decision to attend college and 46 percent reported that campus child care was their first priority when enrolling. Nearly 60 percent of respondents reported they could not have continued college without child care and 95 percent reported that child care allowed them to increase their class load. A survey of campus children's centers found that 90 percent of centers maintain waiting lists; the average center serves 110 children per week but has another 90 children on its waiting list. A survey of campus children's centers found that 90 percent of centers maintain waiting lists; the average center serves 110 children per week but has another 90 children on its waiting list. Single parents attending community colleges are more likely than other community college students to work full-time (54 percent of single parents, 41 percent of other students) and are less likely to attend school full-time (33 percent of single parents, 43 percent of other students). In addition to being more likely to work full time, care for children and other family members is also a significant demand on single parents' time. This is particularly true for women.