Every year since the passage of the Act
It hasn't even been 2 years.
There's an important lesson here too -- actions that we take today will not have an observable effect until months later. Everything has a lag time. It'll probably take 3 years until we see the start of the Act's impacts, 5 until they become obvious.
You mentioned increased emissions in Europe, and Germany is a fantastic example of this effect. They created a moratorium on nuclear energy years ago, and many reactors were shuttered these past few years. They've also been burning more coal now, year over year. And they had to temporarily increase energy imports from France... Which was largely nuclear generated. I think we'll see in the coming years that Germany gained nothing from closing nuclear plants, and will probably lag because of it too.
We could've stopped all pollution with the IRA, and we still would've hit +2C early. The trends are already in motion and will take time to reverse.