Despite its reputation, the Netherlands does not actually have a tolerant drug policy. Law enforcement is tough. There are increased efforts to hit drug traffickers and confiscate their assets: the city's enormous Schiphol airport has long maintained a zero-drug tolerance on passengers, crews, cargos and even aircraft. Throughout the country, there are plenty of measures (even coercive) to address the health of drug addicts. Spending on drug control is by far the highest in Europe (almost 0.7% of GDP). As a result, the Netherlands has below EU-average annual prevalence rates of cocaine, opiate, and amphetamine use. The percentage of people (aged 15-65) who consume cannabis at least once a year (5.4%) is above the global average (3.9%), though much lower than, say, Spain and Italy (11.2%) or Canada (17%).
Note, however, that despite the high budget expenditure (much larger than even in Sweden, where 0.47% of GDP is spent in drug control), the prevalence rate of cannabis use in the Netherlands is greater than in Sweden (3.1%). Is it that tolerant attitudes on the ground (i.e. at the municipal level) reduce the impact of otherwise uniquely high drug-related national budget expenditure?