1974

6.5

1999

7.1

2021

7.5

2014

7.0

2015

5.8

1991

5.9

1989

9.3

1987

7.4

2010

6.0

1989

7.5

2008

6.2

1988

6.3

2003

7.3

2024

9.5

2014

6.6

2005

6.6

2005

5.4

1999

6.1

2003

7.2

1965

7.1