CoinDesk Bitcoin Price Index

Info on how this value was calculated
Based on the following values:
USD:
BTC-e$487.00
Bitstamp$497.62
Bitfinex$496.83
CNY:
BTC China¥3,092.64
OKCoin¥3,096.17
Last updated: Apr 17, 2014 at 20:09 BST