Frequencies for first 10,000 rows of peinusyr variable in morg08 dataset :

      (dp) Year of entry to US |      Freq.     Percent        Cum.
-------------------------------+-----------------------------------
              Not Foreign Born |      8,114       81.14       81.14
                   Before 1950 |         31        0.31       81.45
                     1950-1959 |         79        0.79       82.24
                     1960-1964 |         66        0.66       82.90
                     1965-1969 |         86        0.86       83.76
                     1970-1974 |         88        0.88       84.64
                     1975-1979 |        134        1.34       85.98
                     1980-1981 |         95        0.95       86.93
                     1982-1983 |         74        0.74       87.67
                     1984-1985 |         62        0.62       88.29
                     1986-1987 |         94        0.94       89.23
                     1988-1989 |         85        0.85       90.08
                     1990-1991 |        129        1.29       91.37
                     1992-1995 |         92        0.92       92.29
                     1994-1995 |        120        1.20       93.49
                     1996-1997 |        103        1.03       94.52
                     1998-1999 |        112        1.12       95.64
                     2000-2001 |        119        1.19       96.83
                     2002-2003 |        102        1.02       97.85
                     2004-2005 |        112        1.12       98.97
                     2006-2007 |        103        1.03      100.00
-------------------------------+-----------------------------------
                         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Mar 2017