No they happen every two years
Every 4 years.
Leap years occur every four years.
Leap years occur every 4 years.
yes the summer Olympics do occur every four years !!! i hope i helped
every 4 years
Every 4 (four) years. The next is 2016. The summer Olympics occur every 4 years.
four
2 years after every winter olympics.
The Summer Olympics are held every 4 years
Every ten years
No every 4 years.