Frequencies for first 10,000 rows of urbanrur variable in nhamcsed2010 dataset :

            Recoded urban-rural |
                 classification |      Freq.     Percent        Cum.
--------------------------------+-----------------------------------
                   missing data |        361        3.61        3.61
            large central metro |      3,232       32.32       35.93
             large fringe metro |      1,776       17.76       53.69
                   medium metro |      2,764       27.64       81.33
                    small metro |        573        5.73       87.06
micropolitan/noncore (nonmetro) |      1,294       12.94      100.00
--------------------------------+-----------------------------------
                          Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016