Question: What is the time period that 6083672 is the population of the state of the United States whose official website is http://www.mo.gov (this statement's language is English)?
Options:
1997-06-18
1638-01-01
850
1968
1588-12-01
1789-01-01
1950-08-31
1965-08-01
2015-01-01
2011-06-05