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 |
||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lifetime | 8th Grade | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 58.7 | 58.2 | 47.1 | 47.5 | 46.6 | 47.6 | 45.5 | 45.7 | 43.5 | 44.1 | 41.8 | 37.8 | 33.5 | 38.5 | 35.6 | 36.0 | 34.2 | 34.3 | 31.0 | 33.0 | 29.4 | 26.4 | 24.7 | 21.2 | 22.2 | 19.6 | 19.8 | 22.0 | 19.1 | 22.0 | 17.0 | | | -5.0* | | | -2.5 | -13.0 | | | -41.7*** | -71.0 | | | 0.0 | 0.0 |
10th Grade | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 73.9 | 73.3 | 63.5 | 63.1 | 62.7 | 64.9 | 64.4 | 60.5 | 61.5 | 63.2 | 61.0 | 56.3 | 54.2 | 56.1 | 57.0 | 56.0 | 53.7 | 51.8 | 51.2 | 51.5 | 49.8 | 46.9 | 45.7 | 43.9 | 40.8 | 35.5 | 37.2 | 38.2 | 35.4 | 37.6 | 26.5 | | | -11.2** | | | -9.0*** | -25.4 | | | -47.4*** | -64.2 | | | 0.0 | 0.0 | |
12th Grade | 86.9 | 88.1 | 89.0 | 88.7 | 89.3 | 88.8 | 88.5 | 89.1 | 88.4 | 88.2 | 86.6 | 88.2 | 86.7 | 86.8 | 84.4 | 81.9 | 80.8 | 80.7 | 76.0 | 78.4 | 77.8 | 78.7 | 79.3 | 74.7 | 76.9 | 74.9 | 73.1 | 72.9 | 70.8 | 68.8 | 66.9 | 67.8 | 66.0 | 66.6 | 64.4 | 64.0 | 63.6 | 62.0 | 60.5 | 54.4 | 52.5 | 55.4 | 52.6 | 51.4 | § | 46.7 | | | . | | | -5.8 | -11.0 | | | -42.7*** | -47.8 | | | . | 0.0 | |
Last 12 Months | 8th Grade | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 35.4 | 36.2 | 33.4 | 34.0 | 34.0 | 34.7 | 33.1 | 32.0 | 32.1 | 31.1 | 28.7 | 25.5 | 23.8 | 29.3 | 25.6 | 26.4 | 25.1 | 25.0 | 22.3 | 23.6 | 21.8 | 18.1 | 17.0 | 14.2 | 16.4 | 12.5 | 13.3 | 15.2 | 13.5 | 17.5 | 11.8 | | | -5.6** | | | -0.7 | -5.6 | | | -24.3*** | -67.3 | | | 0.0 | 0.0 |
10th Grade | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 55.0 | 52.7 | 50.3 | 50.6 | 51.2 | 53.2 | 52.3 | 47.9 | 49.6 | 51.4 | 48.5 | 43.4 | 41.7 | 47.0 | 45.8 | 46.1 | 43.8 | 41.8 | 42.3 | 41.7 | 39.3 | 37.7 | 37.1 | 34.8 | 33.2 | 27.6 | 29.2 | 29.9 | 27.2 | 30.8 | 19.4 | | | -11.4** | | | -8.2*** | -29.7 | | | -35.7*** | -64.8 | | | 0.0 | 0.0 | |
12th Grade | 75.2 | 77.0 | 77.0 | 79.3 | 78.2 | 78.0 | 76.4 | 78.4 | 76.7 | 74.5 | 74.0 | 75.2 | 73.1 | 69.7 | 68.7 | 65.9 | 62.9 | 63.9 | 62.1 | 64.8 | 66.8 | 64.4 | 65.0 | 63.4 | 62.3 | 61.8 | 59.3 | 59.4 | 58.6 | 56.0 | 55.1 | 55.4 | 54.3 | 55.3 | 52.8 | 51.5 | 52.3 | 50.2 | 48.3 | 43.4 | 41.9 | 43.4 | 42.1 | 41.5 | § | 32.1 | | | . | | | -9.8** | -23.5 | | | -47.2*** | -59.5 | | | . ** | 0.0 | |
Last 30 Days | 8th Grade | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 16.2 | 16.9 | 17.4 | 18.3 | 18.8 | 18.4 | 16.7 | 16.2 | 16.6 | 15.2 | 15.0 | 12.3 | 12.0 | 14.4 | 12.8 | 12.5 | 12.2 | 11.8 | 10.0 | 10.6 | 9.8 | 7.9 | 6.8 | 6.3 | 7.3 | 4.7 | 5.7 | 6.8 | 5.8 | 8.4 | 5.2 | | | -3.3* | | | 0.5 | 9.8 | | | -13.6*** | -72.3 | | | 0.5 | 9.8 |
10th Grade | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 31.1 | 28.9 | 28.7 | 30.2 | 29.9 | 30.5 | 30.4 | 28.3 | 29.5 | 30.6 | 28.0 | 24.6 | 23.2 | 26.5 | 24.8 | 26.8 | 24.4 | 22.4 | 22.6 | 22.4 | 19.6 | 19.6 | 18.4 | 17.3 | 15.7 | 13.0 | 14.0 | 14.1 | 12.2 | 13.5 | 8.7 | | | -4.8* | | | -4.3*** | -32.9 | | | -22.4*** | -72.0 | | | 0.0 | 0.0 | |
12th Grade | 59.8 | 62.1 | 62.3 | 63.7 | 62.9 | 62.7 | 60.3 | 61.7 | 59.5 | 56.7 | 55.5 | 56.2 | 53.3 | 51.4 | 47.2 | 47.2 | 42.0 | 43.4 | 42.6 | 44.9 | 46.9 | 44.4 | 45.6 | 42.7 | 42.7 | 41.4 | 39.7 | 37.8 | 38.3 | 38.0 | 35.5 | 36.6 | 33.7 | 34.9 | 31.7 | 29.0 | 32.2 | 30.8 | 28.6 | 25.4 | 23.6 | 25.5 | 21.8 | 21.9 | § | 16.5 | | | . | | | -7.1** | -30.2 | | | -47.2*** | -74.1 | | | . ** | 0.0 | |
Binge Drinking | 8th Grade | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 7.2 | 7.3 | 8.2 | 8.5 | 8.5 | 9.2 | 7.6 | 8.0 | 8.3 | 7.5 | 8.1 | 6.1 | 5.5 | 6.8 | 5.8 | 5.5 | 5.4 | 5.1 | 4.9 | 4.8 | 4.3 | 3.5 | 3.0 | 2.5 | 2.5 | 2.0 | 2.6 | 2.9 | 2.5 | 3.2 | 1.9 | | | -1.3 | | | -0.1 | -3.4 | | | -7.3*** | -79.3 | | | 0.0 | 0.0 |
10th Grade | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 16.4 | 15.1 | 16.1 | 17.0 | 17.1 | 17.9 | 17.5 | 16.0 | 18.1 | 17.5 | 16.3 | 14.1 | 13.8 | 13.6 | 13.1 | 14.5 | 13.7 | 10.8 | 11.3 | 10.9 | 10.3 | 10.4 | 9.1 | 8.2 | 7.4 | 5.6 | 6.4 | 6.8 | 5.4 | 6.1 | 3.9 | | | -2.2 | | | -1.7* | -30.9 | | | -14.3*** | -78.6 | | | 0.0 | 0.0 | |
12th Grade | 33.0 | 35.1 | 35.4 | 36.4 | 36.6 | 38.0 | 37.6 | 38.1 | 36.2 | 32.0 | 33.1 | 33.8 | 31.0 | 31.3 | 27.0 | 28.5 | 25.4 | 25.5 | 24.5 | 27.6 | 29.2 | 26.7 | 28.5 | 25.6 | 27.5 | 26.7 | 26.1 | 21.4 | 23.7 | 22.4 | 21.4 | 22.0 | 20.9 | 20.8 | 19.5 | 16.8 | 18.8 | 17.3 | 16.8 | 13.6 | 11.5 | 14.7 | 11.2 | 11.5 | § | 8.8 | | | . | | | -2.7 | -23.7 | | | -29.4*** | -77.0 | | | . | 0.0 |