Figure 2. Labor input for all schools, public schools, and private schools (index 1989 = 100), 1989– 2012
Year All schools Public schools Private schools

1989

100.000 100.000 100.000

1990

101.989 102.211 99.449

1991

103.049 103.415 98.904

1992

102.276 102.549 99.179

1993

104.318 104.752 99.387

1994

106.946 107.168 104.460

1995

109.218 109.199 109.602

1996

111.673 111.529 113.595

1997

115.620 115.472 117.596

1998

119.309 119.136 121.609

1999

123.849 123.716 125.631

2000

125.676 125.470 128.373

2001

129.846 129.757 131.136

2002

130.947 130.769 133.304

2003

131.553 131.248 135.481

2004

134.033 133.606 139.499

2005

135.999 135.409 143.552

2006

137.129 136.362 146.971

2007

139.083 138.216 150.247

2008

140.563 139.998 147.719

2009

140.844 140.490 145.197

2010

137.150 136.703 142.744

2011

136.066 135.723 140.283

2012

136.788 136.681 137.868
Sources: U.S. Bureau of Labor Statistics; U.S. Department of Education, National Center for Education Statistics, State Nonfiscal Survey of Public Elementary/Secondary Education and Schools and Staffing Survey, Private School Questionnaire.