2007

7.0

1998

6.6

2006

6.6

1995

6.3

1997

5.5

1969

7.6

1991

3.0

2014

5.4

2011

6.2

2020

4.0

2017

8.0

1922

6.0

2022

6.6

2005

5.3

2006

4.3

2011

6.6

2021

7.0

2019

6.8

2023

6.7

1983

4.4