1996

5.4

1986

5.8

1965

7.0

2013

6.1

2020

6.2

2025

6.0

2012

5.5

1898

5.8

2010

6.1

2013

5.7

1939

7.1

2014

5.3

2016

8.1

2024

5.7

1984

6.1

2003

5.2

2000

6.3

1999

7.2

2009

5.9

1932

6.2