1972

0.0

1985

5.5

2010

5.1

1920

5.4

1928

6.0

1995

3.0

2008

7.0

2015

6.8

1989

6.0

2010

3.0

2007

6.2

2008

6.1

2009

6.7

2019

8.3

1976

3.5

1990

3.5

2008

3.3

2017

6.1

1961

5.2

2023

5.1