"Number of 9th Students Reporting they First Smoked Marijuana at Age 13 or Younger, All Available Years: by Region" ,,2013,2016 Minnesota,9th,99.0,75.0 East Central,9th,, Metro,9th,84.0,58.0 Non-Metro,9th,15.0,17.0 Northwest,9th,, Northeast,9th,, Southeast,9th,, Southwest,9th,, West Central,9th,, Total,9th,, Sources: Minnesota Student Survey (MSS) SUMN Web Site: http://sumn.org