According to Census 2010, there were 80,337 "pure Hawaiians" in Hawaii (single "race alone"), and 156,146 nationwide.  Of course that's wildly absurd.  How did it happen?  Because perhaps 75,000 in Hawaii, and 150,000 nationwide, are so extremely proud of their smidgen of native blood, and so politically zealous about calling themselves "indigenous" and flying the Hawaiian flag upside down, that they disrespected all their other ancestors and claimed to be solely "Native Hawaiian."  I met a few of those when I was a field representative interviewing people for the Census Bureau.  Men with names like Jones or Mitsuhira, who looked Caucasian or Japanese, became visibly upset if I dared to ask them "and anything else?" and would insist they were 100% Hawaiian.