. ▁ ▁Ign oring ▁imm igration ▁and ▁em igration , ▁the ▁population ▁of ▁Swiss ▁citizens ▁increased ▁by ▁ 7 ▁while ▁the ▁foreign ▁population ▁increased ▁by ▁ 4 . ▁ ▁There ▁was ▁ 1 ▁Swiss ▁man ▁who ▁em igr ated ▁from ▁Switzerland . ▁ ▁At ▁the ▁same ▁time , ▁there ▁were ▁ 9 ▁non - Sw iss ▁men ▁and ▁ 3 ▁non - Sw iss ▁women ▁who ▁imm igr ated ▁from ▁another ▁country ▁to ▁Switzerland . ▁ ▁The ▁total ▁Swiss ▁population ▁change ▁in ▁ 2 0 0 8 ▁( from ▁all ▁sources , ▁including ▁moves ▁across ▁municipal ▁borders ) ▁was ▁a ▁decrease ▁of ▁ 9 ▁and ▁the ▁non - Sw iss ▁population ▁increased ▁by ▁ 1 8 ▁people . ▁ ▁This ▁represents ▁a ▁population ▁growth ▁rate ▁of ▁ 0 . 6 %. ▁ ▁The ▁age ▁distribution , ▁, ▁in ▁Bi ère ▁is ; ▁ 1 4 5 ▁children ▁or ▁ 1 0 . 1 % ▁of ▁the ▁population ▁are ▁between ▁ 0 ▁and ▁ 9 ▁years ▁old ▁and ▁ 1 8 4 ▁te en agers ▁or ▁ 1 2 . 8 % ▁are ▁between ▁ 1 0 ▁and ▁ 1 9 . ▁ ▁Of ▁the ▁adult ▁population , ▁ 1 6 8 ▁people ▁or ▁ 1 1 . 7 % ▁of ▁the ▁population ▁are ▁between ▁ 2 0 ▁and ▁ 2 9 ▁years ▁old . ▁▁ 1 8 6 ▁people ▁or ▁ 1 3 . 0 % ▁are ▁between ▁ 3 0 ▁and ▁ 3 9 , ▁ 2 3 1 ▁people ▁or ▁