▁occupied , ▁while ▁ 3 ▁apart ments ▁( 1 . 6 %) ▁were ▁season ally ▁occupied ▁and ▁ 6 ▁apart ments ▁( 3 . 3 %) ▁were ▁empty . ▁ ▁, ▁the ▁construction ▁rate ▁of ▁new ▁housing ▁units ▁was ▁ 2 . 1 ▁new ▁units ▁per ▁ 1 0 0 0 ▁residents . ▁ ▁The ▁historical ▁population ▁is ▁given ▁in ▁the ▁following ▁chart : ▁ ▁Polit ics ▁In ▁the ▁ 2 0 1 1 ▁federal ▁election ▁the ▁most ▁popular ▁party ▁was ▁the ▁SV P ▁which ▁received ▁ 4 4 . 5 % ▁of ▁the ▁vote . ▁ ▁The ▁next ▁three ▁most ▁popular ▁parties ▁were ▁the ▁S PS ▁( 1 5 . 2 % ), ▁the ▁B DP ▁Party ▁( 1 3 . 1 %) ▁and ▁the ▁Green ▁Party ▁( 5 . 8 %). ▁ ▁In ▁the ▁federal ▁election , ▁a ▁total ▁of ▁ 2 0 8 ▁votes ▁were ▁cast , ▁and ▁the ▁vot er ▁turn out ▁was ▁ 5 5 . 3 %. ▁ ▁Econom y ▁, ▁Schwar zh ä us ern ▁had ▁an ▁un emp loyment ▁rate ▁of ▁ 1 . 5 5 %. ▁ ▁, ▁there ▁were ▁a ▁total ▁of ▁ 1 0 5 ▁people ▁employed ▁in ▁the ▁municipality . ▁ ▁Of ▁these , ▁there ▁were ▁ 1 8 ▁people ▁employed ▁in ▁the ▁primary ▁economic ▁sector ▁and ▁about ▁ 8 ▁business es ▁involved ▁in ▁this ▁sector . ▁▁ 2 3 ▁people ▁were ▁employed ▁in ▁the ▁secondary ▁sector ▁and ▁there ▁were ▁ 6 ▁business es ▁in ▁this ▁sector . ▁▁ 6 4