Approximate number of American adults who make one or more New Year's resolutions each year: 102,344,000
Percent who resolutely oppose making any resolutions: 38
Average number of days it takes to form a habit: 66
Fraction of resolutions that are maintained past the first weeks: 3/4
Fraction that are maintained beyond six months: less than 1/2
Percent of people who say they always succeed in sticking to resolutions: 8
Proportion who say they never do: 1 in 4
Sources: Opinion Research Corporation; U.S. Census Bureau; Journal of Clinical Psychology; European Journal of Social Psychology
