Frequencies for first 10,000 rows of psych_unit_trmntn_dt variable in pos1994 dataset :

psychiatric |
       unit |
termination |
       date |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,954       99.54       99.54
     850701 |          2        0.02       99.56
     850923 |          1        0.01       99.57
     851201 |          1        0.01       99.58
     851224 |          1        0.01       99.59
     860701 |          3        0.03       99.62
     880101 |          1        0.01       99.63
     880201 |          1        0.01       99.64
     880301 |          1        0.01       99.65
     880701 |          2        0.02       99.67
     881001 |          1        0.01       99.68
     881231 |          1        0.01       99.69
     890101 |          3        0.03       99.72
     890630 |          1        0.01       99.73
     890701 |          6        0.06       99.79
     890901 |          1        0.01       99.80
     891109 |          1        0.01       99.81
     900101 |          1        0.01       99.82
     910101 |          2        0.02       99.84
     910531 |          1        0.01       99.85
     910701 |          2        0.02       99.87
     911001 |          1        0.01       99.88
     920226 |          1        0.01       99.89
     920501 |          1        0.01       99.90
     920701 |          1        0.01       99.91
     920814 |          1        0.01       99.92
     920831 |          1        0.01       99.93
     920902 |          1        0.01       99.94
     921027 |          1        0.01       99.95
     930101 |          1        0.01       99.96
     930415 |          1        0.01       99.97
     940106 |          1        0.01       99.98
     940901 |          1        0.01       99.99
     940930 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017