That's not what the data shows...
http://www.ctj.org/corporatetaxdodgers/CorporateTaxDodgersReport.pdf
Yet the combined .gov revenue is very near, as a percentage of GDP, the historic highs. I think its been higher 2 or 3 years, so how much do you think the combined .gov revenue, as a percentage of GDP, should be? 40% of GDP? 50%? 75%? Whats your personal limit on how much of Americas gross domestic product should be taxed and spent by the .gov?