Frequencies for s5_c3_6 variable in prds_hosp10_yr2017 dataset :

  Number of |
   stations |
    S500000 |
      00600 |
      00300 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          3        0.08        0.08
          2 |          2        0.05        0.13
          4 |          1        0.03        0.16
          5 |          1        0.03        0.19
         12 |          1        0.03        0.21
          . |      3,741       99.79      100.00
------------+-----------------------------------
      Total |      3,749      100.00

by Jean Roth , jroth@nber.org , 26 Oct 2018