Here's the link below to the clock showing an approximation of how much time is left to mine the remaining Bitcoin with the amount of hashing power at the moment. 80% of all Bitcoin that will ever be issued has already been mined. 16.29 Exahash of power mining Bitcoin now with a block being found every 10 minutes. That's a lot of electricity and computing power.

http://www.bitcoinblockhalf.com/