Ranges for the number of injecting drug users in Norway 2002-2010, calculated using the Mortality Multiplier*

Year
Lower limit - Upper limit
2002 10,500-14,000
2003 9,200-12,800
2004 8,700-12,200
2005 8,900-12,400
2006 8,400-11,700
2007 8,600-12,000
2008 8,800-12,500
2009 8800-12,500
2010 8,300-11,800

Source: SIRUS
* Figures are rounded.

"The figures include all injecting use. Heroin is still the most common drug injected, but, for more and more people, amphetamine is becoming the main drug injected. The proportion of injecting drug users in Oslo who had primarily injected amphetamine during the past month was approximately 20 per cent in 2002–2004. In 2008–2010, the corresponding figure was approximately 35 per cent (unpublished results from a study conducted among injecting drug users in Oslo, Bretteville-Jensen, SIRUS). It has also become more common to inject both heroin and amphetamine."

Source

Norwegian Institute for Alcohol and Drug Research, "The Drug Situation in Norway 2012: annual report to the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA)," (Oslo, Norway: December 2012), Table 1, p. 27.
http://www.emcdda.europa.eu/s…