It hardly ever talks about government income.
I get the feeling that government income generally goes up and down in a way that has very little to do with raising or lowering taxes, and a great deal to do with whether or not the economy is booming. But I don't really know, because 'how much money does the government receive?' isn't a question reporters are interested in answering. v.v Maybe I'll dig through the CBO's website and see if they can tell me.