1977

8.2

1958

7.5

1989

8.3

1990

6.9

2015

8.1

2001

8.5

1993

6.6

2004

5.4

2017

7.4

2010

8.2

1975

7.7

2012

8.3

1985

7.9

2014

7.7

2012

7.7

2024

8.4

1976

7.9

2003

7.4

1992

5.8

1994

8.5