1960-1962: 45.8% of American adults were either overweight or obese (overweight: 31.5%, obese: 13.4%, extremely obese: 0.9%)
1976-1980: 48.5% of American adults were either overweight or obese (overweight: 32.1%, obese: 15%, extremely obese: 1.4%)
1999-2000: 69.5% of American adults were either overweight or obese (overweight: 33.6%, obese: 30.9%, extremely obese: 5%)
2005-2006: 73.5% of American adults were either overweight or obese (overweight: 32.2%, obese: 35.1%, extremely obese: 6.2%)
2009-2010: 75.4% of American adults were either overweight or obese (overweight: 32.7%, obese: 36.1%, extremely obese: 6.6%)