Frequencies for first 10,000 rows of prov0140 variable in pos1993 dataset :

clia - hosp |
  lab id #3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,989       99.89       99.89
 01D0027091 |          1        0.01       99.90
 01D0676789 |          1        0.01       99.91
 01D0683464 |          1        0.01       99.92
 01D0694123 |          1        0.01       99.93
 01D0718929 |          1        0.01       99.94
 01D0721371 |          1        0.01       99.95
 01D0726736 |          1        0.01       99.96
 01D0869651 |          1        0.01       99.97
 04D0673308 |          1        0.01       99.98
 05D0671143 |          1        0.01       99.99
 06D0511979 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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