Summary statistics for s3_1_c22_3 variable in snf_rollup2540_96_1998 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
  s3_1_c22_3 |      9,418    64.48185    51.08001        .03       1902

by Jean Roth , jroth@nber.org , 17 Feb 2018