Frequencies for first 10,000 rows of totchron variable in namcs2014 dataset :

  Total number of |
          chronic |
       conditions |      Freq.     Percent        Cum.
------------------+-----------------------------------
Entire item blank |        137        1.37        1.37
                0 |      3,998       39.98       41.35
                1 |      2,279       22.79       64.14
                2 |      1,390       13.90       78.04
                3 |      1,047       10.47       88.51
                4 |        663        6.63       95.14
                5 |        287        2.87       98.01
                6 |        126        1.26       99.27
                7 |         46        0.46       99.73
                8 |         17        0.17       99.90
                9 |          7        0.07       99.97
               10 |          2        0.02       99.99
               11 |          1        0.01      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017