Figure 1From: Public spending for illegal drug and alcohol treatment in hospitals: an EU cross-country comparisonPrevalence of problem drug use (2007-2011*) versus hospital days for 8 EU countries. *The prevalence for problem drug users aged 15–64. Depending on the availability of data, prevalence estimates are presented for the years 2007, 08, 09, 10 or 11. †The EMCDDA did not provide prevalence rates for Slovenia, Finland, Portugal, Hungary, Lithuania and Romania.Back to article page