A 1994 survey found that 8.6% of the U.S. population regularly watched C-SPAN.[1] In 2004 this figure increased to 12% of the U.S. population, according to a Pew Research Center survey, while 31% of the population was categorized as occasional viewers.[2] More than 28 million people said they watched C-SPAN programming each week.[3] A March 2009 Hart Research survey found that 20% of homes with cable television watch C-SPAN at least once a week, for an estimated 39 million Americans.[132] A 2010 poll conducted by C-SPAN and Penn Schoen Berland estimates that 79 million adults in the U.S. watched C-SPAN at some time from 2009 to 2010.[133] In January 2013, Hart Research conducted another survey which showed that 47 million adults, or 24% of adults with access to cable television, watch C-SPAN weekly.[56][134] Of the 47 million regular C-SPAN viewers, 51% are male and 49% female; 26% are liberal, 31% conservative, and 39% moderate.