Looks like each big drop is tied with each major conflict Russia was involved in at its borders (Georgia in 2008, Ukraine/Crimea in 2014, and Ukraine/Donbas in 2021). Pretty steep. Interesting to note that recovery to previous levels only happened after the 2008 slump, never after.
defaultfieldstate t1_j62op9q wrote
No need to buy a car when many families are getting a free Lada!