SELECT SUM("Enrollment") FROM table_34186 WHERE "Mascot" = 'norsemen'
Which Enrollment has a Mascot of norsemen?
CREATE TABLE table_34186 (
    "School" text,
    "Location" text,
    "Mascot" text,
    "Enrollment" real,
    "IHSAA Class" text,
    "# / County" text,
    "Year joined" real,
    "Previous conference" text
)