CREATE TABLE table_204_879 (id DECIMAL, "year" DECIMAL, "host / location" TEXT, "division i overall" TEXT, "division i undergraduate" TEXT, "division ii overall" TEXT, "division ii community college" TEXT)

when was the last time the event was held in minnesota ?
SELECT "year" FROM table_204_879 WHERE "host / location" = 'minnesota' ORDER BY "year" DESC LIMIT 1
SELECT "year" FROM "table_204_879" WHERE "host / location" = 'minnesota' ORDER BY "year" DESC NULLS LAST LIMIT 1