CoinDesk Bitcoin Price Index

Info on how this value was calculated
Based on the following values:
USD:
BTC-e$486.00
Bitstamp$498.66
Bitfinex$498.96
CNY:
BTC China¥3,102.60
OKCoin¥3,111.43
Last updated: Apr 20, 2014 at 21:56 BST