According to the 2010 United States Census vs Ding

According to the 2010 United States Census

Ding

name
  • A surname. 

  • A county of Republican China in Hebei Province. 

  • A prefecture of imperial China within present-day Hebei under the Northern Wei, Sui, and Tang dynasties, with its seat at Dingzhou. 

How often have the words According to the 2010 United States Census and Ding occurred in a corpus of books? (source: Google Ngram Viewer )