Frequencies for first 10,000 rows of pccsat variable in namcs2007 dataset :

for patient |
       care |
compensatio |
      n, is |
    patient |
satisfactio |
    n taken |
       into |
   account? |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |         74        0.74        0.74
    unknown |      1,546       15.46       16.20
        yes |      1,949       19.49       35.69
         no |      6,431       64.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016