Population and housing censuses by country etc.) are referred to as quinquennial censuses. Others are referred to as decennial censuses. The first quinquennial census was conducted in 1956. For the 2006 Census of Canada, respondents were able to complete their census questionnaire online for the first time. Other options for answering the questionnaire included postal mail (using a pre-paid envelope) and telephone (using an 800 number). At a sub-national level, two provinces (Alberta and Saskatchewan) and two territories (Nunavut and Yukon) have legislation that allows local governments to conduct their own municipal censuses. National population censuses are carried out in Chile every ten years by the
Melville Island (Northwest Territories and Nunavut) deposits. The island was believed to have deposits of coal and oil shale since the first half of the 20th century. The first Canadian Arctic island exploratory well was spudded in 1961 at Winter Harbour. It drilled Lower Paleozoic strata to a total depth of . In the 1970s, the northern portion of the island on the east side of the Sabine Peninsula proved to contain a major gas field, known as Drake Point. The lease was owned by Panarctic Oils, a joint operation with the Canadian Government. Melville Island (Northwest Territories and Nunavut) Melville Island is an uninhabited island