... San Antonio . Cannabis was identified in 35 to 36 percent of all the exhibits analyzed by DPS laboratories in 1999 and 2000 , but the proportion dropped to 31 percent in 2001 and 32 percent in 2002 ( exhibit 7 ) . The Houston DEA Field ...

... San Antonio . Cannabis was identified in 35 percent of all the exhibits analyzed by DPS laboratories in 1999 and 2000 , but dropped to 31 percent in 2001 and 28 percent in 2002 ( exhibit 7 ) . The Houston Field Division reports ...

... San Antonio . Cannabis was identified in 35 to 36 percent of all the exhibits analyzed by Total Age 12-17 38.7 23.8 1989 1990 1991 23.8 15.6 11.1 13.0 Age 18-25 69.5 44.5 Age 26-34 35.2 26.1 18.8 24.5 19.9 1992 1993 1994 1995 14.8 15.7 ...

... San Antonio . Cannabis was identified in 35 to 36 percent of all the exhibits analyzed by DPS laboratories in 1999 and 2000 , but the proportion dropped to 31 percent in 2001 and 32 percent in 2002 ( exhibit 7 ) . The Houston DEA Field ...

... San Antonio . Cannabis was identified in 35 to 36 percent of all the exhibits analyzed by DPS laboratories in 1999 and 2000 , but dropped to 31 percent in 2001 , 28 per- cent in 2002 , and then was up to 30 percent in 2003 ( exhibit 7 ) ...