2018

8.0

2009

7.4

1994

8.7

1987

8.1

2001

7.7

1991

7.5

1955

7.1

1989

7.8

1997

8.2

1997

7.2

2023

6.5

1973

7.3

1985

8.3

2013

7.3

2010

7.5

1984

7.3

2001

7.9

1959

7.8

1978

7.4

2009

6.5