were 43 single family homes (or 48.9% of the total) out of a total of 88 inhabited buildings. There were 25 multi-family buildings (28.4%), along with 18 multi-purpose buildings that were mostly used for housing (20.5%) and 2 other use buildings (commercial or industrial) that also had some housing (2.3%). Of the single family homes 29 were built before 1919, while 2 were built between 1990 and 2000. The most multi-family homes (13) were built before 1919 and the next most (3) were built between 1919 and 1945. There was 1 multi-family house built between 1996 and 2000. there were 143 apartments in the municipality. The most common apartment size was 3 rooms of which there were 42. There were 2 single room apartments and 50 apartments with five or more rooms. Of these apartments, a total of 127 apartments (88.8% of the total) were permanently occupied, while 8 apartments (5.6%) were seasonally occupied and 8 apartments (5.6%) were empty. , the construction rate of new housing units was 5 new units per 1000 residents. The vacancy rate for the municipality, , was 0.66%. The historical population is given in the following chart: Politics In the 2007 federal election the most popular party was the SVP which received 23.2% of the vote. The next three most popular parties were the FDP (21.76%), the SP (18.36%) and the Green Party (17.2%). In the federal election, a total of 128 votes were cast, and the voter turnout was 51.2%. Economy , La Chaux had an unemployment rate of 3.5%. , there were 32 people employed in the primary economic sector and about 15 businesses involved in this sector. 11 people were employed in the secondary sector and there were 6 businesses in this sector. 22 people were employed in the tertiary sector, with 8 businesses in this sector. There were 184 residents of the municipality who were employed in some capacity, of which females made up 42.4% of the workforce. the total number of full-time equivalent jobs was 53. The number of jobs in the primary sector was 24, all of which were in agriculture. The number of jobs in the secondary sector was 10 of which 3 or (30.0%) were in manufacturing and 6 (60.0%) were in construction. The number of jobs in the tertiary sector was 19. In the tertiary sector; 10 or 52.6% were in wholesale or retail sales