Figure 4. Labor productivity based on output measure for all students and for students with and without disabilities, quality adjusted, 1989–2012
Year All students, quality adjusted (index, 1989 = 100) Students with and students without disabilities, quality adjusted (index, 1989 = 100)

1989

100.000 100.000

1990

99.637 99.784

1991

100.404 100.689

1992

103.707 104.183

1993

103.244 103.959

1994

102.651 103.553

1995

102.958 104.088

1996

102.959 104.211

1997

100.765 102.198

1998

98.813 100.401

1999

96.691 98.404

2000

96.299 98.105

2001

94.851 96.716

2002

95.458 97.411

2003

96.136 98.204

2004

95.432 97.569

2005

95.159 97.300

2006

95.250 97.384

2007

94.154 96.204

2008

93.486 95.433

2009

92.937 94.862

2010

96.232 98.141

2011

97.613 99.493

2012

97.538 99.445

Source: U.S. Bureau of Labor Statistics.