WASHINGTON (AP) — In 1995, no state had an obesity rate above 20 percent. Now, all but one does.An annual obesity report by two public health groups looked for the first time at state-by-state statistics over the last two decades. The state that has the lowest obesity rate now — Colorado, with 19.8 percent of adults considered obese — would have had the highest rate in 1995."When you look at it year by year, the changes are incremental," says Jeffrey Levi, executive director of the Trust for America's Health, which writes the annual report with the Robert Wood Johnson Foundation.