there were 87 private households in the municipality, and an average of 3. persons per household. There were 13 households that consist of only one person and 12 households with five or more people. In 2000, a total of 84 apartments (90.3% of the total) were permanently occupied, while 7 apartments (7.5%) were seasonally occupied and 2 apartments (2.2%) were empty. As of 2009, the construction rate of new housing units was 15.7 new units per 1,000 residents. In 2010, the vacancy rate for the municipality was 3.01%. The historical population is given in the following chart: Politics In the 2011 federal election, the most popular party was the Social Democratic Party of Switzerland (SPS), which received 29.2% of the vote. The next three most popular parties were the Swiss People's Party (SVP, 22.1%), the Christian Democratic People's Party of Switzerland (CVP, 21.4%), and the FDP (10.2%). The SPS received about the same percentage of the vote as they did in the 2007 Federal election (28.1% in 2007 vs 29.2% in 2011). The SVP moved from third in 2007 (with 18.6%) to second in 2011, the CVP moved from second in 2007 (with 24.6%) to third, and the FDP moved from below fourth place in 2007 to fourth. A total of 112 votes were cast in this election. Economy As of 2010, Corserey had an unemployment rate of 1.5%. As of 2008, there were 33 people employed in the primary economic sector and about 9 businesses involved in this sector. 6 people were employed in the secondary sector, and there were 4 businesses in this sector. 26 people were employed in the tertiary sector, with 10 businesses in this sector. There were 132 residents of the municipality who were employed in some capacity, of which females made up 41.7% of the workforce. In 2008, the total number of full-time equivalent jobs was 56. The number of jobs in the primary sector was 27, all of which were in agriculture. The number of jobs in the secondary sector was 6 of which 1 was in manufacturing and 5 (83.3%) were in construction. The number of jobs in the tertiary sector was 23. In the tertiary sector; 1 was in the sale or repair of motor vehicles, 3 or 13.0% were in a hotel or restaurant, 3 or 13.0% were in the information industry, 2 or 8.7% were technical professionals or scientists,