CREATE TABLE table_31082 ("Year" FLOAT, "Number of tropical storms" FLOAT, "Number of hurricanes" FLOAT, "Number of major hurricanes" FLOAT, "Deaths" CLOB, "Strongest storm" CLOB)

When the death is none what is the number of major hurricanes?
SELECT COUNT("Number of major hurricanes") FROM table_31082 WHERE "Deaths" = 'None'
SELECT COUNT("Number of major hurricanes") FROM "table_31082" WHERE "Deaths" = 'None'