Adding Immigrants to Microsimulation Models

by Harriet Orcutt Duleep and Daniel J. Dowhan
Social Security Bulletin, Vol. 68 No. 1, 2008
Table equivalent for Chart 1. Immigrants remaining in the United States, by years since immigration, entry age group, and source-country development status (in percent)
Years since
immigration		 Developed
countries,
15–39		 Developed
countries,
40–56		 Developed
countries,
57–69		 Developed
countries,
70+		 Less
developed
countries,
15–39		 Less
developed
countries,
40–56		 Less
developed
countries,
57–69		 Less
developed
countries,
70+
1 93.08133415 94.6019857 94.1380563 97.11810836 98.60864423 98.60864423 98.24216433 97.33258573
2 87.43954707 90.20020537 89.35796735 94.76808606 97.47407102 97.47407102 96.80874714 95.1574578
3 82.8389836 86.61079841 85.46007076 92.85177362 96.54888968 96.54888968 95.63987517 93.38376198
4 79.08748005 83.68383673 82.28155295 91.28912744 95.79445578 95.79445578 94.68672512 91.93741173
5 76.02833762 81.29706233 79.68964852 90.01487643 95.1792569 95.1792569 93.90948427 90.75799357
6 73.53377717 79.3507806 77.57609466 88.97579562 94.67759644 94.67759644 93.27568761 89.79624367
7 71.49960192 77.76369613 75.85260908 88.12848303 94.26852025 94.26852025 92.75886169 89.01199014
8 69.84084517 76.46951704 74.44720248 87.43754675 93.93494138 93.93494138 92.33741891 88.37247502
9 68.48822132 75.414186 73.30117159 86.87412666 93.66292637 93.66292637 91.99375577 87.85098602
10 67.38523184 74.55362225 72.36664715 86.41468892 93.44111326 93.44111326 91.7135176 87.42574076
11 66.48580528 73.85188039 71.60459447 86.04004301 93.26023701 93.26023701 91.48499896 87.0789769
12 65.75237296 73.27964895 70.98318291 85.73454011 93.11274249 93.11274249 91.29865473 86.79621027
13 65.1542997 72.81302604 70.47645635 85.4854195 92.99246891 92.99246891 91.14670137 86.56562981
14 64.66660424 72.43252103 70.06324904 85.28227549 92.89439251 92.89439251 91.02279186 86.37760428
15 64.26891573 72.12224035 69.72630146 85.11662286 92.81441665 92.81441665 90.92175056 86.22427992
16 63.94462287 71.86922373 69.45153946 84.98154236 92.74920079 92.74920079 90.83935699 86.09925243
17 63.68018009 71.66290275 69.22748634 84.87139172 92.69602089 92.69602089 90.77216962 85.99729948
18 63.46454171 71.49465947 69.04478348 84.78157 92.65265564 92.65265564 90.71738206 85.91416251
19 63.28870061 71.35746643 68.89579946 84.70832539 92.61729368 92.61729368 90.67270585 85.84636894
20 63.14531198 71.24559314 68.77431128 84.64859848 92.58845798 92.58845798 90.63627489 85.79108705
SOURCE: Authors' estimates are based on 1980 and 1990 Census of Population 5 percent and 1 percent public-use microdata samples.
Table equivalent for Chart 2. Undocumented immigrants remaining in the United States, by years since immigration
Years since
immigration		 Percent remaining in
the United States
0 100
1 45.96153846
2 30.85848126
3 26.6373704
4 25.45762404
5 25.12790005
6 25.03574642
7 25.00999067
8 25.00279226
9 25.0007804
10 25.00021811
11 25.00006096
12 25.00001704
13 25.00000476
14 25.00000133
15 25.00000037
16 25.0000001
17 25.00000003
18 25.00000001
19 25
20 25
SOURCE: Authors' emigration function imposed on estimates from Passel (1999).