The midterm elections produced a mixed bag of results when it came down to the states considering legalising or marijuana for medical or recreational purposes.

Two states considered whether to legalise cannabis for recreational purposes, with voters in Michigan approving legalising the drug while those in North Dakota voting against doing so.

Meanwhile, voters in Utah and Missouri approved measures to legalise weed for medical purposes, in spite of protest from the Mormon church in Utah where a considerable portion of the population adheres to the religion.

The approval of recreational marijuana in Michigan would make it the 10th US state to legalise the drug for that use, after prominent states like Colorado, Washington, and California have paved the way. Recreational marijuana is also legal in the District of Columbia.

Medical marijuana will be legal in 33 states with the passage of ballot initiatives in Utah and Missouri.

The push for the legalisation of marijuana in the United States has led to an explosion in the market over the past several years.

US midterm elections: voters head to the polls Show all 28 1 /28 US midterm elections: voters head to the polls US midterm elections: voters head to the polls Beto O'Rourke talks with a supporters after he cast his ballot at El Paso Community College-Rio Grande Campus Getty Images US midterm elections: voters head to the polls Sarah Salem, 34, swims as voters cast their ballots at Echo Deep Pool in Los Angeles AP US midterm elections: voters head to the polls Abigail Spanberger, Democratic candidate to represent Virginia's seventh Congressional district in the US House of Representatives; casts her ballot to vote in the 2018 midterm general election, with her daughters Claire (L), Charlotte (Bottom C) and Catherine (R); inside a polling station located at Deep Run High School in Glen Allen, EPA US midterm elections: voters head to the polls A voter waits behind a line to cast their vote at a Fulton County polling place in Atlanta, Georgia REUTERS US midterm elections: voters head to the polls Representative Peter King and his wife Rosemary hand in their completed ballots as voters turn out at the Manor Elementary School in Seaford AP US midterm elections: voters head to the polls Two year old Mave Adilatta looks out from a voting booth as her mother casts her ballot in Cambridge, Massachusetts EPA US midterm elections: voters head to the polls Beto O'Rourke, candidate for US Senate, speaks with reporters after voting REUTERS US midterm elections: voters head to the polls A voters fills out their ballot for the midterm election at a polling place in Madison, Wisconsin REUTERS US midterm elections: voters head to the polls Congresswomen Elect Ayanna Pressley speaks to reporters after voting at the Adams Street Library AFP/Getty Images US midterm elections: voters head to the polls A sign showing voters where to cast their ballots in the 2018 midterm election in the Mt Airy neighborhood in Philadelphia EPA US midterm elections: voters head to the polls Democratic candidate for Vermont Governor Christine Hallquist leaves after voting in Hyde Park, Vermont EPA US midterm elections: voters head to the polls Members of the group Your Vote Matters place signs on an overpass in Saint Louis, Missouri EPA US midterm elections: voters head to the polls Voters cast their ballots at a polling station setup in a City of Hialeah Fire Station Getty Images US midterm elections: voters head to the polls Voters enter a polling station in Des Moines, Iowa Getty Images US midterm elections: voters head to the polls Volunteers with the Democratic party take cover from the rain as they wait to speak to voters outside of a polling station AFP/Getty Images US midterm elections: voters head to the polls Voters cast their ballots in the 2018 midterm election at the Fraternal Order of Eagles in Streetsboro, Ohio EPA US midterm elections: voters head to the polls Democratic candidate for Vermont Governor Christine Hallquist campaigns in Stowe EPA US midterm elections: voters head to the polls A voter of the Jewish community is seen leaving after he cast his ballot in the midterm election at the East Midwood Jewish Center polling station in the Brooklyn borough of New York City AFP/Getty Images US midterm elections: voters head to the polls A man wearing a New York Yankees hat votes during in Manhattan Reuters US midterm elections: voters head to the polls Voters line up to cast their ballot just before the polls open in the mid-term election in Miami Getty US midterm elections: voters head to the polls Voters cast their ballots at the Tuttle Park Recreation Center polling location in Columbus, Ohio AP US midterm elections: voters head to the polls Stickers that read 'I Voted' are seen at a polling station located at Deep Run High School in Glen Allen, Virginia EPA US midterm elections: voters head to the polls Poll workers check over voting machinery before voters arrive at Franklin School in Ohio USA EPA US midterm elections: voters head to the polls Voters cast their ballots at Immaculate Conception Parish Hall in Ravenna, Ohio EPA US midterm elections: voters head to the polls Election judges take the oath before opening a polling location in Arlington Heights, Illinois EPA US midterm elections: voters head to the polls Voters arrive at the Tuttle Park Recreation Center in Columbus, Ohio AP US midterm elections: voters head to the polls People vote in Manhattan Reuters US midterm elections: voters head to the polls A voter uses an electronic voting machine AP

Legal marijuana sales reached $9.7 billion in 2017, according to a report form Arcview Market Research and BDS Analytics. That figure is a 33 per cent increase over the sales in 2016, and showed that legal marijuana sales could grow even in the face of an federal government that is anything but friendly to lax marijuana laws.

That market is only expected to grow, according to the report, and it is expected that legal marijuana will reach $24.8 billion in sales by 2021. That would represent a 28 per cent annual compound growth rate as more and more states legalise the drug for use.