on . ▁ ▁The ▁by - e lection ▁was ▁called ▁following ▁the ▁res ignation ▁of ▁C ll r ▁Mike ▁Gre ene . ▁ ▁The ▁by - e lection ▁was ▁called ▁following ▁the ▁res ignation ▁of ▁C ll r ▁Philip ▁Thompson . ▁ ▁The ▁by - e lection ▁was ▁called ▁following ▁the ▁res ignation ▁of ▁C ll r ▁Christopher ▁J . ▁Bass on . ▁▁ 2 0 1 0 - 2 0 1 4 ▁ ▁The ▁by - e lection ▁was ▁called ▁following ▁the ▁death ▁of ▁C ll r ▁Martin ▁J . ▁Dav ies . ▁ ▁The ▁by - e lection ▁was ▁called ▁following ▁the ▁death ▁of ▁C ll r ▁Dave ▁Hor an . ▁ ▁The ▁by - e lection ▁was ▁called ▁following ▁the ▁res ignation ▁of ▁C ll r ▁Michael ▁Nicola ides . ▁▁▁▁ ▁The ▁by - e lection ▁was ▁called ▁following ▁the ▁res ignation ▁of ▁C ll r ▁Thomas ▁Ne um ark . ▁ ▁The ▁by - e lection ▁was ▁called ▁following ▁the ▁res ignation ▁of ▁C ll r ▁M s . ▁K irst y ▁Roberts . ▁ ▁The ▁by - e lection ▁was ▁called ▁following ▁the ▁res ignation ▁of ▁C ll r ▁Se an ▁Bir ch . ▁Per cent age ▁change ▁is ▁since ▁May ▁ 2 0 1 0 . ▁▁ 2 0 1 4 - 2 0 1 8 ▁ ▁The ▁by - e lection ▁was ▁called ▁following ▁the ▁death ▁of ▁C ll r ▁Peter ▁B ray sh aw . ▁Per cent age ▁change ▁is ▁since ▁May ▁ 2 0