Okay, I really don't want to argue this, but...
2010, 10,706,647 voted Conservative, turnout 65.1%, share 36.1%
2005, 9,556,183 voted Labour, turnout 61.4%, share 35.2%
2001, 10,724,895 voted Labour, turnout 59.4%, share 40.7%
1997, 13,518,167 voted Labour, turnout 71.4%, share 43.2%
1992, 14,092,891 voted Conservative, turnout 77.7%, share 42.3%
1987, 13,736,395 voted Conservative, turnout 75.3% share 42.2%
1983, 13,012,316 voted Conservative, turnout 72.4%, share 42.4%
1979, 13,697,690 voted Conservative, turnout 76%, share 43.9%
1974, 11,457,079 voted Labour, turnout 72.8%, share 39.2%
1974, 11,639,243 voted Labour, turnout 78.8%, shrare 37.1%
I could go on...
its all here
http://www.ukpolitical.info/2010.htm