1988

7.3

2004

7.7

2007

6.5

2005

10.0

2011

6.5

2019

8.0

1993

7.0

2004

6.5

2000

8.1

2023

6.7

2003

7.6

1998

6.2

1983

5.0

2002

7.5

2008

3.0

1999

8.6

2004

8.6

2005

8.2

2004

8.1

2023

5.3