Classification 2010, groups 1–3), just over 10.3% are administrators or secretaries (group 4), around 12.8% have a skilled trade (group 5), over 18% are employed at a low-level in the care, leisure, sales or customer relations sector (groups 6 and 7) and 14.8% are operatives or in elementary occupations (groups 8 and 9). Politics Local government Local government in Dorset consists of two unitary authorities (UA); Bournemouth, Christchurch and Poole (BCP) Council, which governs the major conurbation comprising the three towns, and Dorset Council which serves the more rural remainder of the county. For the BCP council, voters choose 76 councillors from 33 wards, with ten wards returning three candidates apiece and 23 wards, two. Dorset elects 82 councillors representing six three-councillor wards, 18 two-councillor wards and 28 single-councillor wards - 52 wards in total. In both authorities, elections for the entire council occur every four years. The two authorities came into existence on 1 April 2019, when Bournemouth and Poole merged with Christchurch, one of six second-tier districts previously governed by Dorset County Council, leaving the other five districts - Weymouth and Portland, West Dorset, North Dorset, Purbeck and East Dorset - to form a second UA. Dorset County Council was first formed in 1888 by an act of government to govern the newly created administrative county of Dorset which had been based largely on the historic county borders. Dorset became a two-tier non-metropolitan county after a reorganisation of local government in 1974 and its border was extended eastwards to incorporate the former Hampshire towns of Bournemouth and Christchurch. Following a review by the Local Government Commission for England, Bournemouth and Poole each became administratively independent single-tier unitary authorities in 1997. National representation For representation in Parliament Dorset is divided into eight Parliamentary constituencies—five county constituencies and three borough constituencies. At the 2017 general election, the Conservative Party was dominant, taking all eight seats. The borough constituencies of Bournemouth East, Bournemouth West and Poole are traditionally Conservative safe seats and are all represented by Conservative members of parliament. The county constituencies of North Dorset and Christchurch are also represented by Conservative MPs. Between 1997 and 2019, West Dorset was represented by Conservative MP Oliver Letwin who was the Minister of State at the Cabinet Office in David Cameron's government. The seat was won by Chris Loder in the 2019 general election. The marginal seat of South Dorset is represented