From the Minnesota Realtors®:
Total Residential Units Sold in March 2021 were 5,917, up 3.1% from 5,741 in March 2020.
Active Residential Listings in March 2021 were 7,738, down 54.8% from 17,124 in March 2020.
Months of Supply was 1.0 Months in March 2021, compared to 2.4 Months in March 2020.
This graph from the Minnesota Realtors® shows inventory in Minnesota since 2012. Inventory had been trending down, and then was flat over the last couple of years, and then declined significantly during the pandemic.