1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2020 - 2021 Change |
2016 - 2021 Change |
Proportional Change |
Peak year - 2021 Change |
Proportional Change |
Low year - 2021 Change |
Proportional Change |
||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annual | 8th Grade | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1.7 | 1.6 | 1.4 | 1.2 | 0.6 | 0.7 | 0.9 | 0.4 | 0.6 | 0.8 | 0.5 | 0.5 | | | 0.1 | | | -0.4 | -42.0 | | | -1.2*** | -68.9 | | | 0.2 | 42.6 |
10th Grade | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 3.7 | 3.8 | 2.5 | 2.3 | 1.8 | 1.2 | 0.9 | 0.9 | 0.7 | 0.9 | 1.2 | 0.4 | | | -0.8** | | | -0.5* | -51.5 | | | -3.4*** | -88.4 | | | 0.0 | 0.0 | |
12th Grade | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 5.7 | 5.5 | 5.9 | 4.4 | 3.4 | 1.8 | 1.9 | 1.8 | 1.5 | 0.9 | 0.7 | 0.7 | 0.6 | | | -0.1 | | | -1.1** | -64.0 | | | -5.3*** | -89.3 | | | 0.0 | 0.0 |