2005

3.7

2024

5.5

1983

5.2

1999

6.0

2002

5.3

2015

7.5

2007

4.2

2016

4.4

1997

5.8

1988

6.3

1974

2.8

1995

6.3

2017

1.4

1977

4.6

2014

6.3

1969

4.0

1985

5.0

1971

5.2

1973

4.7

2000

3.3