State survey on the use of drugs in secondary education 2004

Home Survey on drug abuse 2003

School survey on drug consumption 2002

Home survey on drug consumption 2001

School survey on drug consumption 2000

Home survey on drug consumption 1999)

Survey on drugs in the school population 1998

Home survey on drug consumption 1997

Survey on drugs in the school population 1996

Home survey on drug consumption 1995