Frequencies for first 10,000 rows of dlys_stn_cnt variable in pos2000 dataset :

 stations - |
      total |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,367       93.67       93.67
          1 |          1        0.01       93.68
          2 |          4        0.04       93.72
          3 |          7        0.07       93.79
          4 |          6        0.06       93.85
          5 |          9        0.09       93.94
          6 |         20        0.20       94.14
          7 |         13        0.13       94.27
          8 |         24        0.24       94.51
          9 |         21        0.21       94.72
         10 |         71        0.71       95.43
         11 |          8        0.08       95.51
         12 |         49        0.49       96.00
         13 |         32        0.32       96.32
         14 |         23        0.23       96.55
         15 |         30        0.30       96.85
         16 |         44        0.44       97.29
         17 |         17        0.17       97.46
         18 |         28        0.28       97.74
         19 |         20        0.20       97.94
         20 |         46        0.46       98.40
         21 |         24        0.24       98.64
         22 |         27        0.27       98.91
         23 |          7        0.07       98.98
         24 |         21        0.21       99.19
         25 |         24        0.24       99.43
         26 |         11        0.11       99.54
         27 |          4        0.04       99.58
         28 |          8        0.08       99.66
         29 |          4        0.04       99.70
         30 |          5        0.05       99.75
         31 |          4        0.04       99.79
         32 |          2        0.02       99.81
         33 |          2        0.02       99.83
         34 |          5        0.05       99.88
         35 |          2        0.02       99.90
         36 |          3        0.03       99.93
         38 |          1        0.01       99.94
         40 |          1        0.01       99.95
         41 |          1        0.01       99.96
         42 |          1        0.01       99.97
         49 |          1        0.01       99.98
         59 |          1        0.01       99.99
         76 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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