context: From the 1930s up until 1980, the average American after-tax income adjusted for inflation tripled, which translated into higher living standards for the American population. Between 1949 and 1969, real median family income grew by 99.3%. From 1946 to 1978, the standard of living for the average family more than doubled. Average family income (in real terms) more than doubled from 1945 up until the 1970s, while unemployment steadily fell until it reached 4% in the 1960s. Between 1949-50 and 1965-66, median family income (in constant 2009 dollars) rose from $25,814 to $43,614, and from 1947 to 1960, consumer spending rose by a full 60%, and for the first time, as noted by Mary P. Ryan, "the majority of Americans would enjoy something called discretionary income, earnings that were secure and substantial enough to permit them to enter sectors of the marketplace that were once reserved for the affluent." In 1960, Americans were, on average, the richest people in the world by a massive margin.
question: How many dollars did the median family income increase from 1949-50 to 1965-66?
answer: 17800