1985

6.1

2001

6.4

2018

6.7

2018

6.2

7.8

2012

7.2

1994

6.6

2006

7.9

1957

7.2

7.0

2003

6.7

2024

6.0

1999

7.5

2004

7.9

1991

6.8

1992

6.7

2002

7.5

1929

7.4

2010

6.9

2022

6.5