Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_31082 ( "Year" real, "Number of tropical storms" real, "Number of hurricanes" real, "Number of major hurricanes" real, "Deaths" text, "Strongest storm" text )

### Question ###
When the death is none what is the number of major hurricanes?

### Accurate SQL ###

SELECT COUNT("Number of major hurricanes") FROM table_31082 WHERE "Deaths" = 'None'