Understand that there isn’t a chart for after Obama was elected but why does it take the government so long to update.
Oh I Know why.....
The IRS data used for these graphs is current through tax year 2009, which includes the first year of Obama. It was published in July, 2011. Hopefully, the 2010 update will be published soon.
The CBO data lags even farther behind -- but that is significantly more complex. The data current through tax year 2007 was published in June, 2010. I keep hoping they will publish an update, but I suspect the CBO has been busy with other things.