10 Highest swings in 1951 10 Lowest swings in 1951
1.Perth/Kinross, Kinross/W Perth +7.79 1.Hammersmith, North -11.76
2.I'ness/R & C, Inverness +7.71 2.Pembrokeshire -8.29
3.Northants, Wellingborough +6.93 3.Shoreditch and Finsbury -5.27
4.Angus/Kincardine, S Angus +6.79 4.Gateshead, East -5.10
5.Darlington +6.58 5.Fife, West -4.56
6.Middlesbrough, West +6.33 6.Essex, Thurrock -4.52
7.Halifax +6.27 7.Belfast, North -3.71
8.Norwich, North +5.10 8.Glasgow, Central -3.50
9.Leicestershire, Bosworth +5.08 9.Glasgow, Pollok -3.32
10.Banffshire +4.94 10.Lincolnshire, Grantham -2.82
10 Highest swings in 1955 10 Lowest swings in 1955
1.Belfast, North +6.84 1.Anglesey -9.16
2.Newcastle-upon-Tyne, North +6.43 2.Edinburgh, Leith -8.44
3.Middlesbrough, West +6.21 3.Suffolk, Eye -7.73
4.Caithness and Sutherland +6.19 4.Breconshire and Radnorshire -6.15
5.Glamorganshire, Barry +6.14 5.Edinburgh, South -5.06
6.Coventry, North +6.12 6.I'ness/R & C, Inverness -3.77
7.Coventry, East +6.10 7.Sussex (West), Horsham -3.72
8.Chesterfield +6.09 8.I'ness/R & C, Western Isles -3.30
9.Buckinghamshire, Wycombe +6.00 9.Yorkshire (NR), Thirsk/Malton -3.15
10.Derbyshire, Ilkeston +5.90 10.Somerset, Weston-super-Mare -2.96
10 Highest swings in 1959 10 Lowest swings in 1959
1.Anglesey +7.34 1.Glasgow, Cathcart -13.42
2.Wolverhampton, North-East +7.00 2.Greenock -12.65
3.Bristol, Central +6.90 3.Rochdale -11.13
4.Birmingham, Aston +6.52 4.Belfast, South -6.25
5.Shoreditch and Finsbury +6.41 5.Manchester, Ardwick -5.73
6.Plymouth, Devonport +6.29 6.Glasgow, Provan -5.33
7.Edmonton +6.14 7.Aberdeenshire, East -5.17
8.Enfield, East +5.86 8.Chesterfield -4.81
9.Walsall, South +5.77 9.Belfast, North -4.73
10.Southwark +5.73 10.Belfast, East -4.67
10 Highest swings in 1964 10 Lowest swings in 1964
1.Smethwick +7.22 1.I'ness/R & C, Western Isles -16.96
2.Wednesbury +3.52 2.Paisley -12.54
3.Suffolk, Eye +3.14 3.Coatbridge and Airdrie -11.22
4.West Bromwich +2.27 4.Middlesbrough, West -11.00
5.Warwickshire, Rugby +1.41 5.Glasgow, Springburn -10.65
6.Cornwall, Falmouth and Camborne +1.33 6.Hampstead -10.57
7.Oldbury and Halesowen +1.30 7.Glasgow, Provan -10.20
8.Suffolk, Lowestoft +1.12 8.Liverpool, Toxteth -9.99
9.Durham, Houghton-le-Spring +1.11 Banffshire -9.99
10.Camberwell, Peckham +1.04 10.Liverpool, Wavertree -9.33
Rowley Regis and Tipton +1.04
10 Highest swings in 1966 10 Lowest swings in 1966
1.Angus/Kincardineshire,S Angus +2.63 1.Birmingham, Stechford -8.66
2.Pembrokeshire +2.49 2.Birmingham, Sparkbrook -8.61
3.Anglesey +1.83 3.Antrim, South -8.44
4.Derbyshire, Belper +1.59 4.Birmingham, Small Heath -8.35
5.Kent, Faversham +1.54 5.Belfast, South -8.33
6.Paisley +1.45 6.Kingston-upon-Hull, West -7.92
7.Devon, Torrington +1.12 7.Kingston-upon-Hull, North -7.85
8.Norfolk, South West +0.93 8.Camberwell, Peckham -7.82
9.Dorset, South +0.92 9.Newcastle-upon-Tyne, East -7.75
10.Cornwall, North +0.84 10.Birmingham, All Saints -7.71
10 Highest swings in 1970 10 Lowest swings in 1970
1.Merthyr Tydfil +20.83 1.Angus/Kincardineshire,S Angus -2.75
2.Staffordshire, Cannock +11.01 2.Warwickshire, Rugby -2.65
3.I'ness/R & C, Western Isles +10.51 3.Birmingham, All Saints -1.18
4.Wandsworth, Clapham +10.19 4.Warwickshire, Nuneaton -1.11
5.Birmingham, Ladywood +9.89 5.Edinburgh, South -1.02
6.Bolton, East +9.74 6.Southport -0.88
7.Lancashire, Westhoughton +9.52 7.Yorkshire (ER), Haltemprice -0.74
8.Newcastle-under-Lyme +9.50 8.Liverpool, Scotland -0.67
9.Staffordshire, Brierley Hill +9.46 9.Liverpool, West Derby -0.44
10.Wolverhampton, North East +9.14 10.Bootle -0.26
10 Highest swings in 1974(F) 10 Lowest swings in 1974(F)
1.Blyth +17.50 1.Merthyr Tydfil -18.51
2.Lincoln +5.81 2.Wolverhampton, South West -16.6
3.Durham, City of Durham +5.6 3.Dudley, East -11.4
4.Glamorganshire, Ogmore +5.53 Staffordshire, South West -11.4
5.Glamorganshire, Pontypridd +5.40 5.Wolverhampton, North East -10.6
6.Ayrshire, Kilmarnock +5.1 6.Warley, East -10.2
7.Moray and Nairnshire +5.00 7.Walsall, South -8.7
8.Merionethshire +4.73 8.Warley, West -8.4
9.Aberdeen, North +4.56 9.Wolverhampton, South East -7.7
10.I'ness/R & C, Ross & Cromarty +4.55 10.Liverpool, Garston -7.52
10 Highest swings in 1974(O) 10 Lowest swings in 1974(O)
1.Sheffield, Brightside +7.59 1.Glasgow, Central -6.73
2.I'ness/R & C, Ross and Cromarty +2.89 2.Leeds, West -6.45
3.Cornwall, Falmouth and Camborne +1.81 3.Glasgow, Govan -6.02
4.Cheltenham +1.49 4.Liverpool, Kirkdale -6.01
5.Banffshire +1.24 5.Blyth -5.69
6.Cornwall, Bodmin +1.17 6.Hove -5.57
7.Gloucestershire, West +1.07 7.Leeds, South-East -5.56
8.Cornwall, North +0.65 Paisley -5.56
9.Warwickshire, Rugby +0.58 9.Edinburgh, Central -5.55
10.Yorkshire (WR), Hemsworth +0.57 Fife, East -5.55
10 Highest swings in 1979 10 Lowest swings in 1979
1.Cardiganshire +17.68 1.Sheffield, Brightside -5.50
2.Nottinghamshire, Ashfield +14.33 2.Glasgow, Cathcart -4.39
3.Tower Hamlets, Bethnal Green +14.03 3.Dunbartonshire, Central -3.71
4.Barking and Dagenham, Barking +13.95 4.Glasgow, Govan -3.44
5.Ayrshire, South +13.88 5.Glasgow, Kelvingrove -3.14
6.Barking and Dagenham, Dagenham +13.42 6.Glasgow, Queen's Park -3.01
7.Birmingham, Stechford +12.99 7.Bradford, West -2.91
8.Essex, Harlow +12.90 8.Glasgow, Provan -2.81
9.Tower Hamlets, Stepney/Poplar +12.86 9.Glasgow, Central -2.68
10.Anglesey +12.54 10.Greenock and Port Glasgow -2.62
10 Highest swings in 1983 10 Lowest swings in 1983
1.Hertfordshire, West Herts. +12.75 1.Strathclyde, Carrick, C&DV -8.43
2.Portsmouth, North +11.18 2.Glasgow, Cathcart -7.60
3.Humberside, Boothferry +10.62 3.Liverpool, Mossley Hill -6.44
4.Bexley, Erith and Crayford +10.49 4.Liverpool, Broadgreen -4.76
5.Clwyd, Wrexham +10.48 5.Gwent, Blaenau Gwent -4.75
6.Stockton, North +10.45 6.Newcastle-upon-Tyne, Central -3.85
7.Lothian, Livingston +10.36 7.Birmingham, Ladywood -3.75
8.Basildon +10.26 8.Cheshire, Crewe and Nantwich -3.47
9.Hertfordshire, Hertford & S'fd.+10.13 9.Barnsley, Central -3.22
10.Clwyd, Wrexham +9.98 10.Merseyside, Knowsley North -3.17
10 Highest swings in 1987 10 Lowest swings in 1987
1.Newham, Newham South +8.95 1.Liverpool, Mossley Hill -13.17
2.Ealing, Ealing North +7.96 2.Liverpool, Broadgreen -12.42
3.Haringey, Tottenham +6.78 3.Liverpool, Walton -11.22
4.Enfield, Edmonton +6.26 4.Strathclyde, East Kilbride -10.75
5.Derbyshire, Amber Valley +5.32 5.Liverpool, Garston -10.50
6.Waltham Forest, Chingford +4.79 6.Paisley, South -10.40
7.Wandsworth, Battersea +4.63 7.Highland, Ross, Cromarty & S. -9.59
8.Norfolk, North West Norfolk +4.21 8.Liverpool, West Derby -9.55
9.Waltham Forest, Walthamstow +4.11 9.Glasgow, Cathcart -9.41
10.Brent, Brent East +4.08 10.Glasgow, Hillhead -9.28
10 Highest swings in 1992 10 Lowest swings in 1992
1.Glasgow, Pollok +10.59 1.Nottinghamshire, Mansfield -10.59
2.Coventry, South East +7.00 2.Leicester, East -9.53
3.Glasgow, Govan +6.97 3.Haringey, Tottenham -9.23
4.Edinburgh, Leith +6.67 4.Waltham Forest, Leyton -8.84
5.Aberdeen, North +5.18 5.Nottingham, North -8.66
6.Central, Falkirk East +5.09 6.Nottingham, East -8.55
7.Grampian, Kincardine & Deeside +4.93 7.Exeter -8.50
8.Strathclyde, Eastwood +4.12 8.Ealing, Ealing North -8.17
9.Strathclyde, Cumbernauld & K. +4.09 9.Hove -8.01
10.Glasgow, Central +4.08 10.Staffordshire, Mid-Staffs. -7.99
10 Highest swings in 1997 10 Lowest swings in 1997
1.Tower Hamlets, Bethnal Grn./Bow +5.92 1.Brent, Brent North -18.83
2.Bradford, West +5.45 2.East Sussex, Hastings & Rye -18.52
3.Liverpool, Riverside -1.67 3.Crosby -18.15
4.Gwent, Blaenau Gwent -1.86 4.Harrow, Harrow East -18.09
5.Mid Glamorgan, Rhondda -1.96 5.Waltham Forest, Walthamstow -17.87
6.Glasgow, Baillieston -2.31 6.Croydon, Croydon North -17.64
7.Airdrie and Shotts -2.66 7.Essex, Billericay -17.58
8.Motherwell and Wishaw -2.74 8.Harrow, Harrow West -17.52
9.Glasgow, Maryhill -3.05 9.Hillingdon, Hayes & Harl'gtn.-17.44
10.Lothian, Linlithgow -3.07 10.Enfield, Enfield Southgate -17.40
10 Highest swings in 2001 10 Lowest swings in 2001
1.Havering, Romford +9.14 1.Brent, Brent North -9.77
2.Birmingham, Perry Barr +8.96 2.Berkshire, Reading West -7.44
3.St. Helens, South +8.89 3.Strathclyde, Eastwood -6.35
4.Norfolk, North Norfolk +8.52 4.Aberdeen, South -5.85
5.N. Yorkshire, Richmond (Yorks.) +8.00 5.Harrow, Harrow West -5.42
6.Mid Glamorgan, Merthyr Tydfil +7.83 6.Enfield, Enfield Southgate -5.08
7.Barking and Dagenham, Dagenham +7.82 7.Ealing, Ealing North -4.95
8.Nottinghamshire, Newark +7.41 8.Edinburgh, West -4.89
9.Cumbria, Copeland +7.35 9.Grampian, Moray -4.85
10.Cumbria, Westmorland/Lonsdale +7.17 10.Newham, East Ham -3.95
TOP TEN HIGHEST MAGNITUDE SWINGS SINCE 1950 UNTIL 1992:
1. Merthyr Tydfil, 1970 +20.83
2. Merthyr Tydfil, 1974(F) -18.51
3. Cardiganshire, 1979 +17.68
4. Blyth, 1974(F) +17.50
5. Inverness-shire and Ross & Cromarty,
Western Isles, 1964 -16.96
6. Wolverhampton, South West, 1974(F) -16.6
7. Nottinghamshire, Ashfield, 1979 +14.33
8. Tower Hamlets, Bethnal Green and Bow, 1979 +14.03
9. Barking and Dagenham, Barking, 1979 +13.95
10. Ayrshire, South, 1979 +13.88
TOP TEN HIGHEST MAGNITUDE SWINGS SINCE 1950 INCLUDING 1997:
1. Merthyr Tydfil, 1970 +20.83
2. Brent, Brent North, 1997 -18.83
3. East Sussex, Hastings and Rye, 1997 -18.52
4. Merthyr Tydfil, 1974(F) -18.51
5. Crosby, 1997 -18.15
6. Harrow, Harrow East, 1997 -18.09
7. Waltham Forest, Walthamstow, 1997 -17.87
8. Cardiganshire, 1979 +17.68
9. Croydon, Croydon North, 1997 -17.64
10. Essex, Billericay, 1997 -17.58