Frequencies for first 10,000 rows of totchron variable in nhamcsopd2010 dataset :

  total number of |
          chronic |
       conditions |      Freq.     Percent        Cum.
------------------+-----------------------------------
entire item blank |        204        2.04        2.04
                0 |      4,202       42.02       44.06
                1 |      2,452       24.52       68.58
                2 |      1,403       14.03       82.61
                3 |        879        8.79       91.40
                4 |        499        4.99       96.39
                5 |        203        2.03       98.42
                6 |         99        0.99       99.41
                7 |         48        0.48       99.89
                8 |          8        0.08       99.97
                9 |          3        0.03      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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