I'm not sure because it's rolled into my grocery and restaurant budget. However, I've been working on reducing it.
MMM got me into Bota Box wine, which I actually like (Redvolution and their Malbec are my favorites, but I just discovered Nighthawk Black on their website and want to give it a try). My bf likes them, too. So thanks to that, we're saving on wine at home. I limit my drinking to two nights per week, and I typically have 2 drinks on each of those two nights. I realized a while ago that since my work schedule is all over the place, I don't have "normal" weekends to tell me when it's acceptable to drink, and if I don't pay attention, I'll end up drinking more than twice a week. So now I pay attention! (Not that it's not acceptable for a M-F worker to have a drink on Tuesday, but for me, I wanted some parameters.)
I've been cutting back on ordering drinks when I go out to eat (we go out once a week, and I typically order one drink while we're out), both because I'm reducing my sugar intake and because they're ridiculously expensive. My goal, starting in April, is to order zero drinks when out at restaurants. That leaves a glass of wine to look forward to when we get home!