How does the Closeness of an Election affect Turnout? [2001] [2019]

-2001 saw Voters feel the Result of the 2001 General Election was Obvious - it would be Labour. So therefore Turnout was at 59% -2019 was seen as a Closely Contested Election. Even though the Conservatives got a Nice Majority, its Margins of Victory was Small and only got 44% of the Popular Vote. This is why Turnout was at 67%