Sinclair

http://en.wikipedia.org/wiki/Sir_John_Sinclair

"the idea I annex to the term [statistical] is an inquiry into the state of a country, for the purpose of ascertaining the quantum of happiness enjoyed by its inhabitants, and the means of its future improvement"

http://en.wikipedia.org/wiki/Statistical_Accounts_of_Scotland

"In 1790, Sir John sent structured questionnaires to over 900 parish ministers, covering the whole country."