WASHINGTON, April 3, 2013 /PRNewswire-USNewswire/ -- Child care costs have nearly doubled in the last quarter century while the percentage of families who pay for child care has declined, according to a U.S. Census Bureau report Who's Minding the Kids? Child Care Arrangements: Spring 2011released today. The percent of family income spent on child care has stayed constant between 1986 (the first time these data were collected) and 2011, at around 7 percent, for families who paid for child care even though the cost of child care has increased over time. (Photo: http://photos.prnewswire.com/prnh/20130403/DC88049-INFO) (Logo: http://photos.prnewswire.com/prnh/20110428/DC91889LOGO) "Perhaps the most critical decision parents make in balancing their work and home life is choosing the type of care to provide for their children while they work," said report author Lynda Laughlin, a family demographer in the Census Bureau's Fertility and Family Statistics Branch. "Child care arrangements and the financial burden they impose on families are important issues for policymakers and anyone concerned about the welfare of children. This report is unique in that it is not only the sole study from the Census Bureau on this topic, but also provides a consistent time-series on trends going back to the mid-1980s." Families with an employed mother and children younger than 15 (see chart) paid an average of $143 per week for child care in 2011, up from $84 in 1985 (in constant 2011 dollars). The median wage for a full-time child care worker did not increase over the last 20 years. The median wage for a child care worker in 2011 was $19,098, not different from $19,680 in 1990 (in constant 2011 dollars). The percent of families who reported they made a cash payment for child care for at least one of their children declined from 42 percent to 32 percent between 1997 and 2011.