Statistics on various dates from various sources
1 M$ = 1 million US dollars
Bitcoin values converted to USD at 500 USD/BTC.

[pre]
  7'000'000 M$/year  Total credit card payments worldwide
     20'000 M$/year  Total credit card fraud cost worldwide (0.3%)
        100 M$/year  Purchases through BitPay (2013)
        300 M$       MtGOX's heist
      2'700 M$/year  Average trade volume on Bitstamp (extrap.)
     15'000 M$/year  Average trade volume on Huobi (extrap.)
[/pre]