I know I won't tell my family. Maybe his though. But to be honest they are the type to ignore and hope it goes away.
Kind of like what you are doing! As they say we are only as sick as our secrets!!
His addiction has not only consumed him it's consumed you as well. Your entire life revolves around drinking, counting bottles, making predictions, lying and covering up consumption, etc.
He's gone to therapy to appease your efforts in getting him to stop drinking, and that hasn't worked very well has it?
Have you thought about therapy for you? What about al-anon?
If you keep doing what you've always done your going to keep getting the same results. Or as it's said " Insanity is doing the same thing, over and over again, but expecting different results".
How about instead of getting off the bus and counting steps of dread to your front door, you go for therapy, counseling, an al-anon meeting, go for a walk first, take a class, get a part time job, make a different choice then to go directly home and get consumed by his addiction.