Frequencies for first 10,000 rows of prov0145 variable in pos1993 dataset :

clia - hosp |
  lab id #4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,995       99.95       99.95
 01D0303540 |          1        0.01       99.96
 01D0674780 |          1        0.01       99.97
 01D0686259 |          1        0.01       99.98
 01D0718930 |          1        0.01       99.99
 06D0512007 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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