Frequencies for fmtname variable in fhouse2002 dataset :

format name |      Freq.     Percent        Cum.
------------+-----------------------------------
    HHP001X |          1        1.09        1.09
    HHP002X |          1        1.09        2.17
    HHP004X |          4        4.35        6.52
    HHP005X |         13       14.13       20.65
    HHP006X |         13       14.13       34.78
    HHP008X |         13       14.13       48.91
    HHP009X |          6        6.52       55.43
    HHP010X |          6        6.52       61.96
    HHP011X |          6        6.52       68.48
    HHP013X |          8        8.70       77.17
    HHP014X |          3        3.26       80.43
    HHP015X |          2        2.17       82.61
    HHP016X |          2        2.17       84.78
    HHP017X |          2        2.17       86.96
    HHP018X |          2        2.17       89.13
    HHP020X |          6        6.52       95.65
    HHP021X |          4        4.35      100.00
------------+-----------------------------------
      Total |         92      100.00

by Jean Roth , jroth@nber.org , 10 May 2016