1975

3.1

2008

5.9

2009

6.9

2019

6.0

2002

5.2

2018

6.9

1933

5.0

2015

5.9

2007

6.9

1992

7.0

2004

4.7

2008

5.3

2008

5.9

1999

6.8

1985

7.7

2025

10.0

2018

5.1

2003

7.2

1999

7.1

1935

5.0