They are all estimates from UN or WHO. So not accurate to the digits.

I ddg russian population 2023 and got this from world-o-meter: “9th Russia 144,444,359(estimated population) -0.19%(change) -268,955(net)”

Until they have to mobilize the more dense populated area, it’s just a number game for them I guess.

Oh, and compare to Ukraine, it’s pretty dark.

“41th Ukraine 36,744,634 -7.45 % -2,957,105” in the later column, Migrant listed as 1,784,718 assuming fled the war. so should be part of that -2.9m decline number. I don’t know what happened to the other 1.2m.