would introduce excise tax on all products containing THC, and introduce three new product classes for recreational sale: cannabis edibles, cannabis extracts, and cannabis topicals. On 17 October 2019, edibles were made legal in Canada, but with restrictions. The intent was to not allow any products that would be "appealing to young persons", probably including the colourful "gummies" candy which was popular on the black market. Public opinion prior to legislation Since 1997, public opinion polls have found an increasing majority of Canadians agree with the statement, "Smoking marijuana should not be a criminal offence". In June 2016, a national poll conducted by Nanos Research showed that 7 in 10 Canadians were in favour of legalization. By 2006, a high percentage of the population was using cannabis, in spite of the risk of police charges for possession, and especially for selling it without the required licence, according to statistics gathered by the Centre for Addiction and Mental Health (CAMH). Nearly half (44%) of Canadians admit to trying it at least once; no statistics were provided as to the percentage who use it frequently. The CAMH report also indicates that by the last year of high school, nearly half (46%) of Ontario students admit to having used marijuana in the past year. The CAMH discussion includes warnings about the negative effects of cannabis. Other groups also warn about the risk, including the Canadian Automobile Association whose 2016 poll indicated, "Almost two-thirds of Canadians are concerned that roads will become more dangerous [due to impairment by the drug] with the legalization of marijuana". An October 2016 national poll by Forum suggests that about five million adult Canadians now use cannabis at least once a month; this is expected to increase by 19 percent after marijuana is legalized. Canaccord Genuity analysts Matt Bottomley and Neil Maruoka released a research note with a more moderate estimate of the number of users. They predicted that approximately 3.8 million persons will be recreational users (presumably on a frequent basis) by 2021. A report by Canada's Parliamentary Budget Officer (PBO) is more bullish, estimating that by 2021 some 5.2 million adults may be users. The Canadian government's Canadian Cannabis Survey 2021 found that 17% of Canadians aged 16 and older reported using cannabis in the last 30 days. Cannabis as a commodity Growers that currently produce marijuana are licensed by Health Canada under the Access to Cannabis