2020

6.9

2000

6.7

1898

5.7

1961

7.2

2009

6.0

2007

7.5

2008

7.6

2013

6.1

2015

5.6

1975

6.9

2001

5.8

1968

6.8

1994

7.4

1999

6.2

1955

7.1

2002

8.3

1979

6.8

1940

7.1

2000

7.3

2009

5.2