John, I believe that the chart you are referring to covers member station finances, in the aggregate, not NPR itself. That one is down lower on the page to which you linked. For example, our two NPR affiliates in Albuquerque, KUNM and KANW, are both anchored by educational institutions, so a significant portion of their funding comes (in one way or another) from taxes. However, the amount they get from Federal grants is minuscule. Other stations, who produce shows that have national syndication, derive a lot of their funding (relative to local college stations) from CPB grants.