The Friday File: From 1976 to 2000, Americans used about 20 days of vacation/year. Since then, the number has steadily declined, hitting a low of 16 in 2014. In 2015, it rose to 16.2 and last year: 16.8! 44% of women took all their vacation time, 48% of men did. The number of days that were not rolled over or paid out last year: 169 million! Happy Labor Day.