1983

7.9

1968

6.9

1999

8.4

1982

5.8

2005

7.5

2013

6.6

1998

6.4

2013

7.6

2012

8.2

2001

6.9

2008

7.5

1995

8.2

1994

6.5

2017

6.0

2012

6.9

2025

7.0

2010

6.8

1993

6.1

2022

5.5

2004

7.3