2006

6.8

2002

6.1

1999

7.1

2008

6.9

1984

6.0

2005

7.0

1967

5.2

2001

6.1

1995

6.3

2024

6.0

1986

6.2

1942

6.3

2017

3.0

2023

5.7

2021

6.7

2009

5.3

2008

5.9

2004

5.7

2010

3.7

2009

4.9