To make it easier to look at the data, I made some tables.
Out of the female races, Roegadyn and Elezen were hit the hardest, both losing 10% of their population. Au Ra also lost a lot at 8%, but they still vastly outnumber both Roegadyn and Elezen. Lalafell only lost 2%, which doesn't surprise me too much. One of the biggest reasons why people play Lalafell is because they're tiny, which is something Viera doesn't offer. It should come to no surprise that the top 3 are the "waifu" races. I'm sure it's going to stay this way until the game is finally shut down.
Most of the male races actually saw an increase in their population. Except for Roegadyn, which was hit hard, losing 10% of its population.
Roegadyn are exceptionally rare now. Think of it like this. There are more Hrothgar out there (23,307) than there are male and female Roegadyn combined (22,682). The people who were worried and expressed concerns about the Roegadyn population being thinned out by Hrothgar and Viera were absolutely right.