1984

8.5

1968

7.3

2006

9.3

2015

8.1

1985

7.9

1998

7.5

1990

6.9

1999

7.7

2024

6.4

2020

8.5

2003

7.4

1987

7.6

1991

7.9

2007

7.6

2018

8.3

1996

7.7

1990

7.8

2010

7.9

1998

7.5

2012

6.9