It looks like we're still getting fatter. An annual obesity report explored the issue state by state over the past 20 years and found that all but one state had an obesity rate of more than 20%. Michigan's adult obesity rate climbed to 30.5% and remains among the highest in the country.Michigan's obesity rate in 1995 was 17.2%, so it is a significant increase.Mississippi topped the list for the seventh straight year and Colorado was at the lowest rate with a 19.8.