Frequencies for first 10,000 rows of prov2855 variable in pos2004 dataset :

 stations - |
      total |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,257       92.57       92.57
          1 |          4        0.04       92.61
          2 |          7        0.07       92.68
          3 |          6        0.06       92.74
          4 |          5        0.05       92.79
          5 |          7        0.07       92.86
          6 |         20        0.20       93.06
          7 |         11        0.11       93.17
          8 |         23        0.23       93.40
          9 |         27        0.27       93.67
         10 |         78        0.78       94.45
         11 |          8        0.08       94.53
         12 |         74        0.74       95.27
         13 |         30        0.30       95.57
         14 |         24        0.24       95.81
         15 |         35        0.35       96.16
         16 |         51        0.51       96.67
         17 |         23        0.23       96.90
         18 |         28        0.28       97.18
         19 |         19        0.19       97.37
         20 |         50        0.50       97.87
         21 |         32        0.32       98.19
         22 |         30        0.30       98.49
         23 |          7        0.07       98.56
         24 |         39        0.39       98.95
         25 |         23        0.23       99.18
         26 |         10        0.10       99.28
         27 |          6        0.06       99.34
         28 |          9        0.09       99.43
         29 |          4        0.04       99.47
         30 |         10        0.10       99.57
         31 |          6        0.06       99.63
         32 |          7        0.07       99.70
         33 |          2        0.02       99.72
         34 |          6        0.06       99.78
         35 |          1        0.01       99.79
         36 |          9        0.09       99.88
         38 |          2        0.02       99.90
         40 |          1        0.01       99.91
         41 |          2        0.02       99.93
         42 |          1        0.01       99.94
         44 |          1        0.01       99.95
         54 |          1        0.01       99.96
         56 |          1        0.01       99.97
         60 |          1        0.01       99.98
         76 |          1        0.01       99.99
        161 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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