Summary statistics for product_tecode dataset :

by Jean Roth , jroth@nber.org , 15 Aug 2017

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      applno |     15,381    95910.85    61544.86       3444     209862
   productno |     15,381    2.012873     1.62261          1         30
   tecodestr |          0
      tecode |     15,352    14.58194    24.24164          1        151
  tesequence |     15,381    1.010858    .1417857          1          4
-------------+---------------------------------------------------------
productmkt~s |     15,381           1           0          1          1

by Jean Roth , jroth@nber.org , 15 Aug 2017