"Number of 9th Students Reporting They Drank Alcohol or Used Drugs Before They Last Had Sexual Intercourse, All Available Years: by Region" ,,2013 Minnesota,9th,474.0 East Central,9th, Metro,9th, Non-Metro,9th, Northwest,9th, Northeast,9th, Southeast,9th, Southwest,9th, West Central,9th, Total,9th, Sources: Minnesota Student Survey (MSS) SUMN Web Site: http://sumn.org