It's no secret that the National Rifle Association is among the best-funded and, therefore, most powerful interest groups in Washington.

The chart below, which was put together by City Limits, a "New York City-based non-profit that strengthens community engagement on civic, economic, and social justice issues", paints the disparity between the NRA's spending and that of groups advocating for more gun control in stark relief.

To be clear, the amounts below are not indicative of how much money is being spent on direct lobbying or campaigns but rather the total sum of money these organizations disburse, according to 990 forms filed with the Internal Revenue Service.

For you non math-majors out there, the NRA alone spent roughly $240 million more than the Brady Center to Prevent Gun Violence, the biggest-spending gun control group. That means the Brady Center's spending amounts to approximately one percent of the NRA's spending in 2010.