There are 16,244,738 Bitcoins in circulation

Blocks mined: 151
Blocks total: 459,579
Minutes between blocks: 8.99
Bitcoins mined: 1,887.50 BTC
Difficulty: 475,705,205,061.00
No. of transactions: 284,135 tx
Hash rate: 3,570,762,535.18 GH/s
Trade volume: 31,577.92 BTC
Total bitcoins sent: 1,806,677.63 BTC