1970

5.6

2019

7.9

2009

6.1

2015

4.3

2023

0.0

2024

8.0

2018

10.0

2017

5.7

2023

2.0

2016

0.0

2007

7.0

2008

7.5

2007

5.5

2002

5.6

1998

7.4

1995

6.2

1995

6.4

2001

6.4

2005

5.7

1998

6.2