1995

6.9

2004

7.9

1994

6.2

1961

7.2

2012

6.4

2022

5.6

2003

5.7

2007

5.6

1999

7.5

1967

7.3

2006

6.5

2012

6.2

2024

6.0

1996

6.3

1942

7.0

2005

7.3

2011

6.7

1992

6.7

2013

7.3

2010

7.6