0.0

0.0

1972

7.4

2025

7.6

2008

6.9

2014

6.1

1997

4.6

2019

5.6

2005

6.7

1998

7.1

1983

6.0

2008

6.6

2004

6.1

2022

4.0

2013

4.2

2006

7.4

1914

6.5

2004

6.0

2015

3.2

2017

7.3