Frequencies for first 10,000 rows of mdcl_tchnlgst_cnt variable in pos2005 dataset :

    medical |
technologis |
   ts (lab) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,963       99.63       99.63
        .25 |          3        0.03       99.66
         .4 |          1        0.01       99.67
          1 |          7        0.07       99.74
       1.78 |          1        0.01       99.75
          2 |          4        0.04       99.79
          3 |          5        0.05       99.84
          4 |          1        0.01       99.85
        4.5 |          1        0.01       99.86
          5 |          2        0.02       99.88
        5.5 |          1        0.01       99.89
          6 |          3        0.03       99.92
       6.25 |          1        0.01       99.93
          7 |          1        0.01       99.94
          8 |          1        0.01       99.95
        8.5 |          1        0.01       99.96
          9 |          1        0.01       99.97
         10 |          1        0.01       99.98
       12.1 |          1        0.01       99.99
         27 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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