That taxpayer funding comes from the parent corporation, the Corporation of Public Broadcasting, which is totally funded by the Federal government and state and local governments. The first thing I noticed is the difficulty to get figures in dollars of their government support. I get NPR pie charts like below:
After more digging, I did get the dollar amounts from the Corporation of Public Broadcasting:
: 
You can find the above pie chart here:
http://www.cpb.org/aboutcpb/financials/budget/
Mark Browning, at The American Thinker, calculated NPR’s taxpayer subsidy numbers based on figures publicly available on NPR’s own website. Here is his piece in American Thinker:
http://www.americanthinker.com/articles/2010/10/how_public_is_nprs_funding.html
Browning estimates that NPR’s 900 member stations receive approximately 41 percent of their funding directly or indirectly from taxpayers, primarily through tax deductions, grants from government-funded universities and direct grants by federal, state and local governments.
NPR receives $180 million each year in funding. Forty one percent of that funding represents $73 million from taxpayers. From the above colorful pie chart, $73 million seems low. How much tax payer money is being diverted to NPR remains an question to be left up to the money experts. From what I see above, it is $99.12 million ($69.30 million + $22.83 million + $6.99 million = $99.12 million).
Finally, much of that taxpayer money is given to Democrats to finance their elections. It is a payoff scheme to insure further government funding using the usual shell game to hide the pea.