"Figure 4: Age-standardised mortality rates for selected substances, deaths registered in 1993 to 2015","" "England and Wales","" "","" "Notes","1. Age-standardised mortality rates per 1 million population, standardised to the 2013 European Standard Population. 2. Cause of death was defined using the International Classification of Diseases, Ninth Revision (ICD-9) for the years 1993 to 2000 and Tenth Revision (ICD-10) from 2001 onwards. More details can be found in the Quality and Methodology Information. Deaths were included where the underlying cause was drug related and the specified substance was mentioned on the death certificate. 3. Figures are for deaths registered, rather than deaths occurring in each calendar year. 4. Figures for England and Wales include deaths of non-residents. " "Unit","Rate per million population" "","" "Registration Year","Amphetamines","Benzodiazepines","Cocaine","Heroin or morphine","New psychoactive substances" "1993","0.9","5.7","0.2","2.7","0.0" "1994","0.6","5.5","0.4","4.8","0.0" "1995","0.8","5.4","0.4","5.8","0.0" "1996","0.8","4.2","0.2","7.7","0.0" "1997","1.0","4.8","0.5","7.8","0.0" "1998","1.1","4.7","1.1","10.8","0.0" "1999","1.5","5.0","1.5","13.4","0.1" "2000","1.1","3.9","1.5","15.1","0.1" "2001","1.4","4.7","1.7","17.4","0.0" "2002","1.7","4.5","2.3","15.4","0.1" "2003","1.4","4.2","2.3","12.4","0.1" "2004","1.4","4.4","2.7","13.4","0.0" "2005","1.8","3.5","3.1","14.9","0.1" "2006","1.6","3.3","3.3","12.6","0.1" "2007","1.7","3.8","3.4","14.6","0.2" "2008","1.7","4.1","4.1","15.8","0.4" "2009","1.3","4.6","3.5","15.5","0.5" "2010","1.0","5.5","2.5","14.0","0.4" "2011","1.1","5.2","1.9","10.5","0.5" "2012","1.7","5.0","2.4","10.3","0.9" "2013","2.0","6.1","3.0","13.6","1.0" "2014","2.6","6.6","4.4","16.9","1.4" "2015","2.7","6.5","5.6","21.3","1.9"