Frequencies for year variable in pccounty2003_2005 dataset :

   Year ( ( |
2005 + 2003 |
    ) / 2 ) |      Freq.     Percent        Cum.
------------+-----------------------------------
       2004 |      3,140      100.00      100.00
------------+-----------------------------------
      Total |      3,140      100.00

by Jean Roth , jroth@nber.org , 14 Mar 2018