Figure 1. Output measures for all students and for students with and without disabilities: all services, 1989–2012
Year All students, no adjustment (index, 1989 = 100) All students, quality adjusted (index, 1989 = 100) Students with and students without disabilities, no adjustment (index, 1989 = 100) Students with and students without disabilities, quality adjusted (index, 1989 = 100)

1989

100.000 100.000 100.000 100.000

1990

101.757 101.840 101.858 101.990

1991

103.351 103.833 103.625 104.128

1992

105.292 106.350 105.743 106.838

1993

106.911 108.150 107.616 108.900

1994

108.571 110.009 109.482 110.976

1995

110.713 112.429 111.882 113.663

1996

112.799 114.829 114.125 116.225

1997

114.188 116.355 115.764 118.010

1998

115.382 117.722 117.184 119.614

1999

117.070 119.623 119.092 121.742

2000

117.842 120.827 120.001 123.093

2001

119.465 123.077 121.754 125.496

2002

120.681 124.829 123.090 127.383

2003

121.582 126.177 124.137 128.891

2004

122.477 127.503 125.156 130.359

2005

123.402 128.854 126.007 131.753

2006

124.056 129.885 126.555 132.794

2007

124.109 130.135 126.429 132.969

2008

124.413 130.878 126.512 133.604

2009

123.859 130.567 125.918 133.272

2010

124.530 131.552 126.474 134.161

2011

125.271 132.483 127.144 135.035

2012

125.907 133.315 127.812 135.922

Source: U.S. Bureau of Labor Statistics.