Name the sum of year for penrith panthers opponent
CREATE TABLE table_name_93 (year INTEGER, opponent VARCHAR)
SELECT SUM(year) FROM table_name_93 WHERE opponent = "penrith panthers"
### Context: CREATE TABLE table_name_93 (year INTEGER, opponent VARCHAR) ### Question: Name the sum of year for penrith panthers opponent ### Answer: SELECT SUM(year) FROM table_name_93 WHERE opponent = "penrith panthers"