1997

4.5

2016

5.9

1911

9.5

2011

7.0

1996

6.1

2023

9.4

2005

5.3

2020

6.2

1971

6.8

2012

5.6

1976

5.5

2021

7.1

1991

5.9

2004

5.6

2017

5.9

2005

8.3

2006

8.3

1992

4.5

2003

4.9

2024

5.7