Figure 1. Enrollment and quality-adjusted output for all schools, public schools, and private schools (index 1989 = 100), 1989–2012
Year Enrollment, all schools Enrollment, public schools Enrollment, private schools Quality-adjusted output, all schools Quality-adjusted output, public schools Quality-adjusted output, private schools

1989

100.000 100.000 100.000 100.000 100.000 100.000

1990

101.558 101.662 100.744 101.813 101.840 101.494

1991

103.458 103.710 101.489 103.700 103.833 102.171

1992

105.600 105.625 105.405 106.452 106.350 107.661

1993

107.448 107.208 109.320 108.516 108.150 112.959

1994

109.119 108.803 111.588 110.537 110.009 117.021

1995

110.970 110.601 113.855 113.054 112.429 120.780

1996

112.684 112.501 114.108 115.273 114.829 120.675

1997

113.840 113.774 114.361 116.740 116.355 121.378

1998

114.821 114.789 115.072 118.099 117.722 122.636

1999

115.599 115.575 115.784 119.999 119.623 124.522

2000

116.685 116.429 118.683 121.409 120.827 128.592

2001

118.039 117.584 121.582 123.825 123.077 133.130

2002

118.915 118.845 119.461 125.331 124.829 131.490

2003

119.455 119.726 117.341 126.462 126.177 129.903

2004

119.985 120.356 117.091 127.738 127.503 130.558

2005

120.651 121.140 116.841 129.029 128.854 131.103

2006

120.916 121.639 115.273 129.838 129.885 129.201

2007

120.687 121.582 113.705 129.920 130.135 127.270

2008

120.167 121.515 109.648 130.304 130.878 123.386

2009

119.914 121.751 105.591 129.626 130.567 118.411

2010

119.943 122.054 103.471 130.378 131.552 116.508

2011

119.784 122.147 101.351 131.092 132.483 114.804

2012

120.006 122.762 98.510 131.606 133.315 111.775
Sources: U.S. Department of Education, National Center for Education Statistics, State Nonfiscal Survey of Public Elementary/Secondary Education and Private School Universe Survey; U.S. Bureau of Labor Statistics.