1996

6.4

1970

7.2

2001

7.3

1964

7.1

2005

4.0

2005

5.3

2002

6.8

2003

5.9

2013

8.5

1988

6.3

2016

3.3

1997

6.1

2023

0.0

2005

8.0

1994

7.5

2007

5.0

2007

3.3

1980

6.6

2024

0.0

2010

3.9