2000

6.3

1970

6.0

1986

5.8

2016

8.1

1898

5.8

1988

7.2

1956

6.2

2012

6.6

1961

7.0

1975

6.1

2021

9.2

1990

6.1

2013

5.9

1971

6.3

2017

5.9

2020

6.0

1965

7.9

2008

6.3

2005

5.7

1931

7.2