0 . 5 % ), ▁the ▁S PS ▁( 1 2 . 4 %) ▁and ▁the ▁C SP ▁( 8 . 9 %). ▁ ▁The ▁age ▁distribution ▁of ▁the ▁population ▁() ▁is ▁children ▁and ▁te en agers ▁( 0 – 1 9 ▁years ▁old ) ▁make ▁up ▁ 1 7 . 7 % ▁of ▁the ▁population , ▁while ▁adult s ▁( 2 0 – 6 4 ▁years ▁old ) ▁make ▁up ▁ 5 9 . 1 % ▁and ▁sen iors ▁( over ▁ 6 4 ▁years ▁old ) ▁make ▁up ▁ 2 3 . 2 %. ▁ ▁In ▁Kü sn acht ▁about ▁ 8 4 . 6 % ▁of ▁the ▁population ▁( between ▁age ▁ 2 5 - 6 4 ) ▁have ▁completed ▁either ▁non - m and atory ▁upper ▁secondary ▁education ▁or ▁additional ▁higher ▁education ▁( e ither ▁university ▁or ▁a ▁Fach ho ch schule ). ▁ ▁There ▁are ▁ 5 8 4 3 ▁households ▁in ▁Kü sn acht . ▁ ▁Kü sn acht ▁has ▁an ▁un emp loyment ▁rate ▁of ▁ 1 . 5 1 %. ▁ ▁, ▁there ▁were ▁ 1 6 7 ▁people ▁employed ▁in ▁the ▁primary ▁economic ▁sector ▁and ▁about ▁ 4 3 ▁business es ▁involved ▁in ▁this ▁sector . ▁▁ 8 4 9 ▁people ▁are ▁employed ▁in ▁the ▁secondary ▁sector ▁and ▁there ▁are ▁ 9 1 ▁business es ▁in ▁this ▁sector . ▁▁ 3 7 9 4 ▁people ▁are ▁employed ▁in ▁the ▁t ert i ary ▁sector , ▁with ▁ 6 6 4 ▁business es ▁in ▁this