Frequencies for first 10,000 rows of ssamsacd variable in posclia1998 dataset :

   ssamsacd |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         61        0.61        0.61
        034 |        203        2.03        2.64
        038 |        112        1.12        3.76
        055 |          1        0.01        3.77
        074 |        886        8.86       12.63
        118 |          2        0.02       12.65
        133 |         36        0.36       13.01
        150 |        130        1.30       14.31
        154 |          1        0.01       14.32
        162 |        132        1.32       15.64
        190 |         88        0.88       16.52
        193 |        130        1.30       17.82
        199 |        114        1.14       18.96
        201 |          1        0.01       18.97
        202 |          1        0.01       18.98
        211 |         98        0.98       19.96
        253 |        263        2.63       22.59
        262 |          1        0.01       22.60
        307 |          1        0.01       22.61
        322 |        521        5.21       27.82
        356 |         37        0.37       28.19
        373 |        381        3.81       32.00
        379 |        317        3.17       35.17
        409 |          1        0.01       35.18
        448 |      2,045       20.45       55.63
        449 |         99        0.99       56.62
        512 |          1        0.01       56.63
        542 |          1        0.01       56.64
        595 |         27        0.27       56.91
        598 |          1        0.01       56.92
        607 |        696        6.96       63.88
        613 |        115        1.15       65.03
        670 |         98        0.98       66.01
        999 |      3,399       33.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016