Table 2
Use of Alcohol, Cigarette and Illicit Drugs in the Previous 30 Days: Tenth Graders
  1991 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
Used no substances in past 30 days 51.9 51.8 49.3 49.8 51.6 51.6 50.9 53.0 53.1 57.5 57.9 60.3 60.3
   
Gender  
   Male 49.5 50.8 48.0 48.1 51.2 49.8 48.6 51.0 53.0 57.2 56.8 60.6 60.2
   Female 54.3 52.9 50.4 51.5 51.8 53.3 53.1 55.1 53.0 57.8 59.0 60.1 60.6
   
Race  
   White 48.5 49.0 45.9 46.8 47.8 48.4 47.7 50.8 49.4 54.7 56.3 57.2 58.5
   Black 67.7 65.4 67.2 66.2 65.9 69.1 64.9 65.8 67.3 67.7 65.3 71.5 69.6
   
Parental Education1  
Less than high school 51.3 46.0 45.8 48.3 49.2 47.0 49.0 52.0 48.8 50.5 50.2 54.8 56.2
Completed high school 49.5 46.0 46.2 47.1 46.9 47.6 47.2 48.7 47.8 52.5 53.0 55.2 54.2
Some college 50.1 51.5 47.0 48.5 50.5 51.6 48.1 50.9 51.6 56.7 55.0 59.5 57.7
Completed college 55.4 54.1 52.7 51.5 54.2 54.9 53.2 56.2 56.6 62.0 62.3 63.0 64.6
Graduate school 51.4 58.7 52.1 53.6 56.1 53.5 56.0 56.9 60.0 61.1 63.8 64.4 64.6
   
College Plans  
   None or under 4 years 38.0 34.0 33.3 32.9 33.8 33.2 34.0 36.1 35.7 40.9 38.8 43.4 43.6
   Complete four years 54.9 54.8 51.9 52.6 54.6 54.5 53.3 55.8 56.1 60.1 60.3 62.5 62.4
   
  1991 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
Used only one substance in past 30 days2 28.1 21.4 21.1 21.0 21.1 21.7 23.3 22.1 22.8 22.3 22.5 21.3 21.6
   
Gender  
   Male 29.8 21.7 21.3 22.0 21.2 22.4 23.5 22.5 23.3 22.1 22.4 20.5 21.6
   Female 26.6 21.1 21.0 20.0 21.2 21.4 23.0 21.8 22.4 22.4 22.4 22.0 21.4
   
Race  
   White 28.9 21.9 21.7 20.9 21.6 22.3 23.7 22.2 23.4 23.0 22.4 22.4 21.6
   Black 25.6 21.0 17.8 18.6 18.6 16.9 22.1 19.6 19.8 19.9 21.3 18.3 18.7
   
Parental Education1  
Less than high school 26.5 22.5 24.6 24.0 21.6 21.9 19.3 23.5 22.9 23.3 27.2 24.0 21.8
Completed high school 28.3 23.5 20.4 21.2 21.9 22.7 24.7 22.3 24.1 23.5 24.5 22.7 23.8
Some college 30.4 21.4 21.9 19.8 22.2 22.0 24.7 23.5 24.4 22.4 23.1 21.2 22.8
Completed college 26.2 20.5 20.6 20.7 21.1 20.4 23.1 21.2 21.7 21.3 21.1 20.7 20.2
Graduate school 29.2 19.8 20.7 22.0 18.8 22.1 21.7 21.6 19.5 22.5 20.2 19.7 20.1
   
College Plans  
   None or under 4 years 28.8 22.8 20.5 21.4 21.1 21.7 24.0 20.8 25.3 21.9 25.5 22.0 21.9
   Complete four years 28.0 21.2 21.3 20.9 21.2 21.9 23.2 22.3 22.3 22.3 22.1 21.2 21.6
   
  1991 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
Used two substances in past 30 days 13.1 15.5 15.9 16.0 14.9 14.4 14.3 14.0 15.6 12.0 11.7 11.3 11.2
   
Gender  
   Male 13.4 16.3 16.3 16.6 15.4 15.1 15.2 15.6 15.6 12.3 12.5 11.8 11.6
   Female 12.8 14.6 15.6 15.4 14.3 13.7 13.5 12.4 15.6 11.6 11.0 10.7 10.8
   
Race  
   White 14.7 16.5 17.0 17.5 16.3 15.6 15.7 14.6 17.2 12.6 12.4 12.2 12.1
   Black 4.9 8.8 10.6 9.0 9.4 9.1 7.7 9.9 8.1 8.4 8.9 7.0 7.5
   
Parental Education1  
Less than high school 13.7 18.3 15.5 15.3 16.2 15.8 17.0 13.1 18.3 15.8 12.6 13.8 13.1
Completed high school 14.4 17.7 17.9 17.0 16.0 15.3 15.6 15.9 18.4 13.8 12.5 13.2 13.1
Some college 13.6 15.8 16.4 17.5 15.1 14.1 15.2 14.7 14.9 11.8 13.1 11.8 11.9
Completed college 11.9 14.8 14.5 15.3 14.1 14.1 12.8 12.8 14.1 10.2 10.3 10.0 9.6
Graduate school 11.8 12.1 14.6 13.1 14.4 13.6 12.6 12.1 13.6 10.9 10.5 9.8 10.1
   
College Plans  
   None or under 4 years 20.9 23.0 21.8 22.4 21.4 20.9 20.4 21.2 22.4 19.6 19.0 19.9 16.7
   Complete four years 11.4 14.1 15.0 14.9 13.7 13.3 13.4 12.8 14.5 10.9 10.8 10.2 10.5
   
  1991 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
Used all three substances in past 30 days 7.0 11.3 13.7 13.3 12.5 12.3 11.6 10.9 8.6 8.3 7.9 7.2 7.0
   
Gender  
   Male 7.4 11.2 14.3 13.3 12.2 12.8 12.7 11.0 8.1 8.3 8.3 7.2 6.7
   Female 6.4 11.3 13.1 13.1 12.8 11.6 10.4 10.7 9.0 8.2 7.6 7.2 7.1
   
Race  
   White 7.9 12.6 15.4 14.9 14.2 13.8 13.0 12.4 10.0 9.7 9.0 8.2 7.7
   Black 1.8 4.8 4.4 6.3 6.2 4.9 5.3 4.6 4.9 3.9 4.6 3.3 4.3
   
Parental Education1  
Less than high school 8.6 13.3 14.1 12.5 13.0 15.4 14.7 11.3 10.1 10.4 10.0 7.5 8.9
Completed high school 7.8 12.8 15.5 14.7 15.2 14.3 12.5 13.1 9.7 10.2 10.0 8.9 8.9
Some college 6.0 11.3 14.7 14.3 12.2 12.3 12.0 10.8 9.1 9.0 8.8 7.6 7.6
Completed college 6.6 10.7 12.2 12.5 10.6 10.7 10.9 9.8 7.6 6.6 6.3 6.3 5.6
Graduate school 7.6 9.5 12.6 11.3 10.8 10.8 9.7 9.4 6.9 5.5 5.4 6.1 5.2
   
College Plans  
   None or under 4 years 12.2 20.2 24.4 23.3 23.7 24.2 21.6 21.9 16.6 17.7 16.7 14.8 17.8
   Complete four years 5.8 9.8 11.9 11.6 10.5 10.3 10.0 9.1 7.2 6.8 6.8 6.1 5.5
1Parental education is calculated by the Institute for Social Research as the average of the mother's and father's education.  Child Trends has relabeled these results to reflect the education level of the most educated parent.  In those circumstances where the gap between mothers' and fathers' education is more than one level, this results is an underestimate of the most educated parent's education level.
 
2Indicates they have used only one of alcohol, cigarettes or illicit drugs.  May in fact have used multiple types of illicit drugs.  
Source: Original analysis by Child Trends of Monitoring the Future Data, 1991-2006