2010

8.2

2020

9.8

2006

9.3

2001

8.5

2023

10.0

2024

5.8

2024

6.4

2022

8.4

1981

8.0

2004

8.4

2005

7.7

1960

7.4

2017

7.2

1988

7.9

1985

7.3

1999

8.1

1970

6.1

2000

8.0

1985

7.8

2008

8.6