Frequencies for first 10,000 rows of totchron variable in nhamcsopd2008 dataset :

  total number of |
          chronic |
       conditions |      Freq.     Percent        Cum.
------------------+-----------------------------------
entire item blank |        213        2.13        2.13
                0 |      4,968       49.68       51.81
                1 |      2,346       23.46       75.27
                2 |      1,142       11.42       86.69
                3 |        729        7.29       93.98
                4 |        377        3.77       97.75
                5 |        139        1.39       99.14
                6 |         57        0.57       99.71
                7 |         23        0.23       99.94
                8 |          6        0.06      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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