CoinDesk Bitcoin Price Index

Info on how this value was calculated
Based on the following values:
USD:
BTC-e$478.00
Bitstamp$489.75
Bitfinex$491.75
CNY:
OKCoin¥3,089.21
BTC China¥3,089.88
Last updated: Apr 23, 2014 at 12:33 BST