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_40955 ( "Position" text, "Jersey number" real, "Name v t e" text, "Height (cm)" real, "Weight (kg)" real, "Birthplace" text, "1995-96 team" text )

### Question ###
What was the average Jersey number of the player for the Calgary Flames, whose Weight (kg) was greater than 84?

### Accurate SQL ###

SELECT AVG("Jersey number") FROM table_40955 WHERE "1995-96 team" = 'calgary flames' AND "Weight (kg)" > '84'