Made me dig around for more info: Attack Helicopters Fleet Strength by Country -- https://www.globalfirepower.com/aircraft-helicopters-attack.... Helicopter manufacturer countries -- https://en.wikipedia.org/wiki/Helicopter_manufacturer
Wonder if those strength numbers are pre-war. The Ukrainians claim to have downed over 250 Ruzzian helicopers, half their fleet.
https://www.oryxspioenkop.com/2022/03/list-of-aircraft-losse...
The real number is probably somewhere between the two, but in any case a massive chunk of the Russian Air Force is destroyed/inoperable.