Rearranging a sorted list of numbers

Hello,

I have columns with a quantity of 50 integers that have been sorted smallest to largest. I would like to rearrange these numbers into lists that grow in ascending order until all the numbers are exhausted.

For example my current columns are arranged like this (1,1,1,1,2,2,2,2,3,3,4,5,5...) and I would like them to be like this (1,2,3,4,5,1,2,3,5,1,2,5,1,2...)

The integers all fall between 1-15 if that helps. Any help would be appreciated, thank you!

This worked well, thank you Bernie!