1964

5.9

1999

7.2

2009

6.0

2012

0.0

2006

1.5

1987

7.7

2024

6.5

2005

6.7

2006

5.8

2005

6.2

1995

6.5

1997

6.1

1987

6.0

2005

5.9

1996

2.7

1976

5.3

1985

7.2

2007

6.6

2003

6.9

2002

5.9