2002

5.4

1996

7.8

2009

8.5

2006

6.4

1984

7.0

2019

9.8

1972

4.0

2015

5.1

2008

4.6

1923

8.5

2015

7.4

1976

4.7

2010

9.1

2014

10.0

2012

5.3

1960

8.0

2021

8.2

2025

5.0

2017

6.4

0.0