2009

7.4

2001

6.1

2002

5.5

2012

6.0

6.8

2006

5.1

1999

5.9

2021

8.3

2011

5.6

1996

5.5

1941

6.2

2013

5.7

1987

5.7

2017

7.8

2022

5.4

2007

5.7

1981

6.5

2023

7.8

2020

7.7

2005

8.4