2015

6.7

2017

5.4

1957

7.2

2024

5.5

2010

7.2

1949

7.5

2012

7.2

1925

8.0

2006

6.9

1982

6.4

2008

6.8

2007

6.9

1964

6.9

1999

5.7

1990

6.0

1986

5.5

2013

7.1

2019

7.4

2019

8.3

2002

7.8