CoinDesk Bitcoin Price Index

Info on how this value was calculated
Based on the following values:
USD:
BTC-e$473.00
Bitstamp$488.18
Bitfinex$487.54
CNY:
BTC China¥3,044.92
OKCoin¥3,053.41
Last updated: Apr 18, 2014 at 11:30 BST