Frequencies for first 10,000 rows of pct0210097 variable in sf12010860us19 dataset :

    centers |
      (901) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,593       95.93       95.93
          1 |        117        1.17       97.10
          2 |         73        0.73       97.83
          3 |         54        0.54       98.37
          4 |         34        0.34       98.71
          5 |         23        0.23       98.94
          6 |         19        0.19       99.13
          7 |         17        0.17       99.30
          8 |          8        0.08       99.38
          9 |         10        0.10       99.48
         10 |          8        0.08       99.56
         11 |          3        0.03       99.59
         12 |          6        0.06       99.65
         13 |          3        0.03       99.68
         14 |          2        0.02       99.70
         15 |          1        0.01       99.71
         16 |          2        0.02       99.73
         17 |          1        0.01       99.74
         18 |          6        0.06       99.80
         20 |          1        0.01       99.81
         21 |          3        0.03       99.84
         22 |          2        0.02       99.86
         24 |          1        0.01       99.87
         26 |          1        0.01       99.88
         30 |          1        0.01       99.89
         37 |          1        0.01       99.90
         40 |          2        0.02       99.92
         44 |          2        0.02       99.94
         46 |          1        0.01       99.95
         48 |          1        0.01       99.96
         49 |          1        0.01       99.97
         51 |          1        0.01       99.98
         60 |          1        0.01       99.99
         81 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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