"According to preliminary data from the 2010 HBSC survey published in the EMCDDA annual report (EMCDDA, 2011), in recent years (2006-2010) there has been an overall stable or decreasing trend in cannabis use in many countries. However, increases have been recorded not only in Greece, but also in the Czech Republic, Latvia, Lithuania, Romania and Slovenia.
"According to a Eurobarometer survey conducted in 27 European countries, including Greece, in spring 2011 on a sample of 504 young people aged 15-25 through a telephone interview, cannabis use is reported by 10% of the sample, with most of these young people (7%) reporting last year use. The European average was 26%, with some 14% reporting last year use. The lowest cannabis prevalence rates were recorded in Greece, Hungary, Malta and Cyprus (Figure 2.4)."

Source

University Mental Health Research Institute, "2011 National Report (2010 Data) to the EMCDDA by the Reitox National Focal Point: Greece: New Development, Trends and in-depth information on selected issues" (Lisbon, Portugal: EMCDDA, 2011), p. 21.
http://www.emcdda.europa.eu/a…