Year Assessed
Native Language Group
English
Spanish
2001
6.1(23)
15.6(20)
2002
8.8(23)
18.7(21)
2003
11.4(22)
19.6(21)
2004
18.3(22)
20.9(22)
2005
20.2(21)
21.7(22)
2006
21.1(21)
23.4(22)