Apparently someone at the Canadian Government has paid attention. On top of registering census2006.ca for the survey of the Canadian population which takes place every 5 years, they also secured some of the domains for future surveys. They even thought of registering some of the available counterparts in other TLDs (some of them with an invalid phone number, by the way). The budget apparently also included the purchase of some PPC ads.
Let’s count the score (I am looking for all domains matching the pattern “census2???” in some TLDs and included some additional variations (there are more)):

Canadian Government:

• census2001.ca
• census2004.ca
• census2006.ca
• census2006fr.ca
• census2011.ca
• census2016.ca
• recensement2001.ca
• recensement2004.ca (ed. did they have a seperate one in French that year?)
• recensement2006.ca
• recensement2011.ca
• recensement2016.ca
• recensement2001.com/net/org/info
• recensement2004.com/net/org/info
• recensement2006.com/net/org/info
• recensement2011.com/net/org/info
• recensement2016.com/net/org/info
• census2004.com/net/org/info
• census2006.com/net/org/info
• census2011.com/net/org/info
• census2016.com/net/org/info

Others:

• census2000.ca
• census2006fr.ca
• census2007.ca
• census2008.ca
• census2009.ca
• census2010.ca
• census2021.ca
• census2026.ca (ed. hmmm, looks like they missed census2031.ca)
• census2036.ca (ed. or is it going to switch to once every 10 years?)
• census2046.ca
• census2000.com
• census2001.com
• census2002.com
• census2005.com
• census2007.com
• census2010.com
• census2020.com
• census2030.com
• census2040.com

census.ca is owned by emall, the guys who just sold almost 400 domains to Yellow Pages.