Passage: As of the census of 2000, there were 16,653 people, 6,511 households, and 4,557 families residing in the county.  The population density was 20 people per square mile (8/km²).  There were 7,247 housing units at an average density of 8 per square mile (3/km²).  The racial makeup of the county was 97.33% White, 0.61% Black or African American, 0.59% Native American, 0.15% Asian, 0.01% Pacific Islander, 0.39% from other races, and 0.92% from two or more races. Approximately 1.07% of the population were Hispanic or Latino of any race.

Question: when did the census happen
2000