Credit: New Zealand Police
Among all participants, 737 (76%) reported that they had acquired illicit drugs in the 30 days prior to their detention. A majority of all participants (73%) reported having acquired cannabis during this period, 25% reported acquiring amphetamines (including methamphetamines), 6% had acquired ecstasy and 3% heroin (Note that participants could report acquiring more than one drug). Figure 44 depicts these results.
http://www.police.govt.nz/resources/2007/nzadam-annual-report/nzadam-annual-report-2006.html