Frequencies for first 10,000 rows of totchron variable in nhamcsopd2005 dataset :

  total number of |
          chronic |
       conditions |      Freq.     Percent        Cum.
------------------+-----------------------------------
                0 |      4,868       48.68       48.68
                1 |      2,342       23.42       72.10
                2 |      1,117       11.17       83.27
                3 |        660        6.60       89.87
                4 |        327        3.27       93.14
                5 |        127        1.27       94.41
                6 |         29        0.29       94.70
                7 |          9        0.09       94.79
                8 |          5        0.05       94.84
entire item blank |        516        5.16      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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