Frequencies for b_1_c22_95 variable in prds_hosp10_yr2017 dataset :

  Ambulance |
   Services |
    B000001 |
      09500 |
      02200 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1778 |          1        0.03        0.03
       4734 |          1        0.03        0.05
       9026 |          1        0.03        0.08
      61493 |          1        0.03        0.11
      97498 |          1        0.03        0.13
     210946 |          1        0.03        0.16
     977981 |          1        0.03        0.19
          . |      3,742       99.81      100.00
------------+-----------------------------------
      Total |      3,749      100.00

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