Complex sentence: According to the 2000 United States Census, 17,279 people in Puerto Rico identified themselves as Asians in combination with one or more other races, 7,960 identified themselves solely as Asians of which 1,873 were Chinese.
Split into simpler sentences: According to the 2000 United States Census, 17,279 people in Puerto Rico identified themselves as Asians in combination with one or more other races. Of this number 7,960 identified themselves solely as Asians of which 1,873 were Chinese.