1995

7.0

1993

7.0

2004

7.5

2002

4.1

2006

6.5

2006

5.4

1994

6.0

1973

5.7

2014

6.3

2005

6.1

2023

5.0

1992

6.7

1999

6.8

2006

5.8

2008

5.1

1955

9.5

2009

5.7

2003

3.3

2022

8.0

2020

0.0