Frequencies for s5_c1_7 variable in hcris2552_10_2015 dataset :

    station |
    s500000 |
00700 00100 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.02        0.02
          2 |         62        0.99        1.01
          3 |         96        1.53        2.54
          4 |         23        0.37        2.91
          6 |          1        0.02        2.92
          8 |          1        0.02        2.94
         10 |          1        0.02        2.96
         12 |          3        0.05        3.00
         14 |          1        0.02        3.02
         15 |          1        0.02        3.04
         17 |          1        0.02        3.05
         18 |          1        0.02        3.07
         24 |          1        0.02        3.08
         25 |          1        0.02        3.10
         90 |          1        0.02        3.12
        120 |          1        0.02        3.13
      31755 |          1        0.02        3.15
          . |      6,061       96.85      100.00
------------+-----------------------------------
      Total |      6,258      100.00

by Jean Roth , jroth@nber.org , 23 Aug 2018