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Students
Enrollment by Age - West Lafayette Campus
(for Fall Semester in Academic Years 1998-99 through 2007-08)
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Undergraduate
Age
1998-99
1999-00
2000-01
2001-02
2002-03
2003-04
2004-05 2005-06 2006-07 2007-08

17-19
40.0%
40.6%
39.3%
39.1%
37.9%
37.3%
38.2% 39.3% 39.8% 38.5% 
20-25
53.9%
53.9%
55.6%
56.5%
57.5%
58.3%
57.4% 56.6% 56.5% 57.8% 
26+
6.2%
5.5%
5.0%
4.4%
4.5%
4.5%
4.4% 4.0% 3.7% 3.7% 
Total
30,159
30,835
30,899
30,987
30,908
30,851
30,747 30,875 31,290 31,186 
Average
20.8
20.8
20.8
20.7
20.7
20.7
20.7 20.6 20.5 20.6 

Graduate
Age
1998-99
1999-00
2000-01
2001-02
2002-03
2003-04
2004-05 2005-06 2006-07 2007-08

17-19
0.2%
0.2%
0.2%
0.1%
0.0%
0.0%
0.1% 0.0% 0.0% 0.0% 
20-25
33.4%
34.0%
35.1%
35.0%
36.4%
36.6%
36.4% 35.7% 34.5% 35.3% 
26+
66.3%
65.8%
64.7%
64.9%
63.6%
63.4%
63.5% 64.3% 65.5% 64.7% 
Total
6,013
6,137
6,121
6,343
6,757
7,096
6,982 6,932 7,023 6,994 
Average
29.4
29.3
29.3
29.2
29.1
29.0
29.0 29.0 29.2 29.0 

Professional
Age
1998-99
1999-00
2000-01
2001-02
2002-03
2003-04
2004-05 2005-06 2006-07 2007-08

17-19
0.6%
0.8%
0.6%
0.3%
0.4%
0.9%
0.6% 0.6% 0.8% 0.4% 
20-25
79.9%
78.1%
78.5%
80.3%
80.6%
81.2%
83.2% 84.5% 82.0% 80.4% 
26+
19.5%
21.1%
20.9%
19.4%
18.9%
17.9%
16.1% 14.9% 17.3% 19.2% 
Total
706
790
851
878
899
900
924 905 915 922 
Average
23.9
23.8
23.8
23.8
23.8
23.7
23.7 23.6 23.8 24.0 

Total
Age
1998-99
1999-00
2000-01
2001-02
2002-03
2003-04
2004-05 2005-06 2006-07 2007-08

17-19
32.7%
33.2%
32.1%
31.7%
30.4%
29.6%
30.4% 31.4% 31.7% 30.7% 
20-25
51.1%
51.1%
52.8%
53.5%
54.4%
54.9%
54.2% 53.5% 53.2% 54.3% 
26+
16.2%
15.6%
15.0%
14.8%
15.2%
15.5%
15.4% 15.1% 15.1% 15.0% 
Total
36,878
37,762
37,871
38,208
38,564
38,847
38,653 38,712 39,228 39,102 
Average
22.3
22.2
22.2
22.1
22.3
22.3
22.3 22.2 22.2 22.2 

Source: Office of Enrollment Management


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