Summary statistics for b_1_c22_64 variable in hosp_rollup2552_96_2004 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
  b_1_c22_64 |          1       21277           .      21277      21277

by Jean Roth , jroth@nber.org , 21 Apr 2018