About 84-percent of high schoolers graduated in Minnesota last year.  In releasing that data for the Class of 2020, the state Department of Education says that was a very slight increase from 2019 despite the COVID-19 pandemic.  Over the last five years, there has been a more than one-percent rise in four-year high school graduations.  Also, the state saw a fewer number of dropouts.  Education officials say they still have work to do in closing racial and ethnic graduation gaps.