I think you're either confused or completely missed the context of the discussion. Federal revenue from taxes as a percentage of total revenue is the irrelevant metric. I was replying to a post that contended that taxation was what curtailed job increases (again, the point of this thread). Were that so, corporate tax rates would have a correlatory relationship with employment rates. And if you click the link, you'll see that is not so. You wondered about personal income taxes and again I cannot surmise what that would have to do with the topic, but the trend is similar - the average American pays a lower tax rate in 2013 than they did in 1983. The other half of the proposition I replied to suggested regulations. The most active eras for occupational and environmental regulations happened from 1960-1970 and from 1980-1996. In other words, this doesn't jibe either. I hope I've clarified the discussion.