2002

6.8

2005

5.3

2003

5.9

1996

6.4

2021

7.0

2005

4.0

1988

6.3

2001

7.3

1970

7.2

1964

7.1

2016

3.3

2023

0.0

2019

6.2

1970

0.0

2007

5.0

2007

3.3

2010

3.9

1997

6.1

2009

6.6

2020

0.0