Frequencies for first 10,000 rows of prv_hypeyrs variable in mcbsatc2013 datase Years since | 1st told of | hgh bld | pressure | Freq. Percent Cum. ------------+----------------------------------- 1 | 793 7.93 7.93 2 | 825 8.25 16.18 3 | 4,339 43.39 59.57 . | 4,043 40.43 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 24 May 2016