Can I do two more border runs in Thailand in 2018 after already completing two in 2017?

Can someone give me some advice on border runs. I did 2 border runs in 2017, my last border run was in November.

Can I do 2 more border runs now in 2018 or do I need to wait until November when a full year has passed to be able to do a border run again.

At immigration in Chiang Rai after extending my 2 month holiday visa was told that I could do the border run again. Just want to be totally sure because the language barrier is always a problem so not sure they understood my question properly.

Thanks