typically how long does it take to housebreak a male yorkie?

[CharmingLAM]

He's 8 weeks old, he's only had a few accidents, when I take him outside and tell him to "do your business" he listens (not right away, but he's getting quicker) and he's being crate trained. He's in there only at night or when i'm not home and when i am home he is monitored by me closely. How much longer will it take for him to be 100% house trained?? Just curious of how long I'll be having to do this!