Frequencies for v23 variable in DAP_cancer_events_state dataset :

              v23 |      Freq.     Percent        Cum.
------------------+-----------------------------------
                  |          1        1.89        1.89
              1.7 |          1        1.89        3.77
              1.9 |          1        1.89        5.66
              2.7 |          3        5.66       11.32
              2.9 |          1        1.89       13.21
              3.0 |          1        1.89       15.09
              3.4 |          2        3.77       18.87
              3.6 |          1        1.89       20.75
              3.7 |          1        1.89       22.64
              3.9 |          2        3.77       26.42
              4.0 |          2        3.77       30.19
              4.1 |          2        3.77       33.96
              4.2 |          1        1.89       35.85
              4.3 |          1        1.89       37.74
              4.6 |          1        1.89       39.62
              4.7 |          4        7.55       47.17
              4.8 |          1        1.89       49.06
              5.1 |          2        3.77       52.83
              5.3 |          3        5.66       58.49
              5.4 |          2        3.77       62.26
              5.5 |          1        1.89       64.15
              5.6 |          3        5.66       69.81
              5.7 |          2        3.77       73.58
              5.8 |          3        5.66       79.25
              5.9 |          3        5.66       84.91
              6.1 |          3        5.66       90.57
              6.4 |          1        1.89       92.45
              6.5 |          2        3.77       96.23
              7.8 |          1        1.89       98.11
Lower conf. limit |          1        1.89      100.00
------------------+-----------------------------------
            Total |         53      100.00

by Jean Roth , jroth@nber.org , 14 Mar 2018