Frequencies for first 10,000 rows of me_attv variable in natlterr2010 dataset :

  Attempted |
 Vacuum RFP |
618=f_md_at |
     tvac R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      4,656       46.56       46.56
          N |      4,861       48.61       95.17
          U |        393        3.93       99.10
          Y |         90        0.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015