Frequencies for first 10,000 rows of prov1710 variable in pos1997 dataset :

psychiatric |
       unit |
termination |
       date |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,919       99.19       99.19
   19850701 |          2        0.02       99.21
   19850923 |          1        0.01       99.22
   19851224 |          1        0.01       99.23
   19860701 |          3        0.03       99.26
   19880101 |          1        0.01       99.27
   19880201 |          1        0.01       99.28
   19880301 |          1        0.01       99.29
   19880701 |          2        0.02       99.31
   19880731 |          1        0.01       99.32
   19881001 |          1        0.01       99.33
   19881231 |          2        0.02       99.35
   19890101 |          4        0.04       99.39
   19890331 |          1        0.01       99.40
   19890630 |          1        0.01       99.41
   19890701 |          6        0.06       99.47
   19890818 |          1        0.01       99.48
   19890901 |          1        0.01       99.49
   19900101 |          1        0.01       99.50
   19900630 |          2        0.02       99.52
   19901101 |          1        0.01       99.53
   19910101 |          2        0.02       99.55
   19910411 |          1        0.01       99.56
   19910531 |          1        0.01       99.57
   19910630 |          1        0.01       99.58
   19910701 |          2        0.02       99.60
   19911001 |          1        0.01       99.61
   19920226 |          1        0.01       99.62
   19920304 |          1        0.01       99.63
   19920501 |          1        0.01       99.64
   19920701 |          1        0.01       99.65
   19920814 |          1        0.01       99.66
   19920831 |          1        0.01       99.67
   19920902 |          1        0.01       99.68
   19921027 |          1        0.01       99.69
   19921218 |          1        0.01       99.70
   19930101 |          1        0.01       99.71
   19930228 |          1        0.01       99.72
   19930415 |          1        0.01       99.73
   19940106 |          1        0.01       99.74
   19940623 |          1        0.01       99.75
   19940901 |          1        0.01       99.76
   19940930 |          1        0.01       99.77
   19950131 |          1        0.01       99.78
   19950401 |          1        0.01       99.79
   19950630 |          1        0.01       99.80
   19950831 |          1        0.01       99.81
   19951220 |          1        0.01       99.82
   19951231 |          1        0.01       99.83
   19960101 |          1        0.01       99.84
   19960131 |          1        0.01       99.85
   19960301 |          1        0.01       99.86
   19960308 |          1        0.01       99.87
   19960414 |          1        0.01       99.88
   19960630 |          1        0.01       99.89
   19960701 |          2        0.02       99.91
   19961001 |          1        0.01       99.92
   19961231 |          1        0.01       99.93
   19970117 |          1        0.01       99.94
   19970617 |          1        0.01       99.95
   19970630 |          1        0.01       99.96
   19970701 |          2        0.02       99.98
   19971231 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016