Laity: For (78) Against (59)
Clergy: For (63) Against (53)
Bishops: For (19) Against (21)
Notice that the majority of voting members were in favour of gay marriage. However, in order for a motion to be accepted, there must be a majority in all three leadership groups.
This issue is probably not going to go away for the Anglican church. The church may well split over this, and you know what? That's ok. On an issue this crucial to a church's spirituality, a split may well be what is needed to divide the wheat from the chaff.