CoinDesk Bitcoin Price Index

Info on how this value was calculated
Based on the following values:
USD:
BTC-e$487.00
Bitstamp$497.39
Bitfinex$497.52
CNY:
BTC China¥3,094.20
OKCoin¥3,092.90
Last updated: Apr 19, 2014 at 18:00 BST