Frequencies for first 10,000 rows of urgnt_care_srvc_cd variable in pos2005 dataset :

srv: urgent |
care center |
   services |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,731       87.31       87.31
          0 |      1,261       12.61       99.92
          1 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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