Historical Data and Plots

Historical data plots

• Timeline of Maps from 1983 - 1987 - 1992 - 1997 - 2001 - 2005 - 2010
• Swingplot from 2001-2005
• Swingplot from 1997-2001
• Swingplot from 1992-1997
• Swingplot from 1987-1992
• Swingplot from 1983-1987

Historical data Excel Pivot Tables

• Full Pivot Table download (364k Microsoft Excel Spreadsheet, 1992-2005)
• Lite Pivot Table download (31k Microsoft Excel Spreadsheet, excludes Constituency, 1983-2005)

Historical data flat files

• New UK constituency boundaries (from 2013)
  • 2010 (Implied) Election Result (48k)

• New England and Wales constituency boundaries (from 2006)
  • 2010 (Actual) Election Result (51k)
  • 2005 (Implied) Election Result (50k)

• New Scottish consitutency boundaries (from December 2003)
  • 2005 (Actual) Election Result (50k)
  • 2001 (Implied) Election Result (49k)

• Constituency boundaries from 1997 to 2001
  • 2001 (Actual) Election Result (50k)
  • 1997 Election Result (49k)
  • 1992 (Implied) Election Result (46k)

• Constituency boundaries up to 1992
  • 1992 (Actual) Election Result (49k)
  • 1987 Election Result (48k)
  • 1983 Election Result (41k)

Note that the 2010 election is available as both the actual results (old constituency boundaries) and as data implied by the 2010 election results projected onto the revised constituency boundaries which will be used at the next election. Similarly, the 2010, 2005, 2001 and 1992 elections are available both as the actual result, and as the result implied by the relevant boundary changes.

Details of the file format are given below.

Notes on the data file format

• The number of constituencies varies:

  Election years	Total	England	Scotland	Wales	Northern Ireland
  1983, 1987	650	523	72	38	17
  1992(Actual)	651	524	72	38	17
  1992(Implied), 1997, 2001(Actual)	659	529	72	40	18
  2001(Implied), 2005(Actual)	646	529	59	40	18
  2005(Implied), 2010(Actual)	650	533	59	40	18
  2010(Implied)	600	502	52	30	16

• The Northern Ireland constituencies are included.
• Data is as at the date of each election, and does not reflect any subsequent by-elections.
• Implied election Data may omit the name of the sitting MP, though the 2001(Implied) and 2005(Implied) will give a suggestion where possible.
• The file contains one row per constituency, plus an initial header row.
• Each row contains 11 entries (in 11 columns), which are divided from each other with semi-colon ";" delimiters.

The 11 columns are

1. Name : the full name of the constituency
2. MP : the name of the MP elected in the election
3. Region : an integer code representing the region the constituency is in. See regional definitions for details.
4. County Area : county (or historic county or geographic area) containing the seat
5. Electorate : the integer number of voters on the roll in that election
6. CON : the integer number of votes received by the Conservative candidate
7. LAB : the integer number of votes received by the Labour candidate
8. LIB : the integer number of votes received by the Liberal Democrat candidate, or Liberal candidate pre-1988
9. NAT : the integer number of votes received by the nationalist candidate (SNP in Scotland, PC in Wales)
10. MIN : the integer number of votes received by a minor party candidate (separated from 'Other' to preserve rankings), or the SDP candidate 1983-1992
11. OTH : the integer number of votes received by all other candidates

In Northern Ireland, the main four party vote columns are different:

6. CON : votes received by the OUP, UUP, or UCUNF candidate in Northern Ireland
7. LAB : votes received by the SDLP candidate in Northern Ireland
8. LIB : votes received by the DUP candidate in Northern Ireland
9. NAT : votes received by the Sinn Fein candidate in Northern Ireland