Frequencies for first 10,000 rows of neontl_icu_srvc_cd variable in pos2010 dataset :

 SRV: ICU - |
   NEONATAL |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,626       86.26       86.26
          0 |      1,306       13.06       99.32
          1 |         53        0.53       99.85
          2 |          7        0.07       99.92
          3 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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