Rouble at new low against U.S. dollar Russia’s central bank has spent more than $80 billion to prop up its rouble this year, and raised interest rates to 17%. The currency has lost more than half its value against the dollar since January ----------------------------------- Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 30 40 50 60 70 Roubles per $ Jan 1, 2014: One U.S. dollar buys 32.9 roubles Feb 21: Russia-backed Ukrainian President Viktor Yanukovich flees after three months of anti-government protests Mar 18: Russia annexes Crimea Jul 17: Malaysia Airlines flight MH17 is shot down over eastern Ukraine, killing all 298 people on board Nov 28: Price of oil slumps to $72 a barrel Dec 16: Central bank raises interest rates from 10.5% to 17% Dec 17: One dollar buys 72.2 roubles ----------------------------------------- Source: Investing.com words 155