CoinDesk Bitcoin Price Index

Info on how this value was calculated
Based on the following values:
USD:
BTC-e$478.00
Bitstamp$490.41
Bitfinex$491.94
CNY:
BTC China¥3,088.34
OKCoin¥3,081.02
Last updated: Apr 24, 2014 at 01:00 BST