I took the LSAT Twice and got the same score, do I need to write an addendum to explain this?

Hello! I just need some advice. I got the same score on my LSAT score from December 2016 and December 2017, do I need to write an addendum twice or can I just submit my application? The reason for the gap in taking the test is I decided to take a year off before starting law school and I retook the test to see if I could get a higher score or not.