1997

4.5

2006

5.1

1985

7.1

1992

6.7

1976

0.0

2000

5.5

2008

7.3

2004

7.5

2016

0.0

2003

6.8

2024

10.0

2023

8.3

2022

0.0

2015

6.7

1973

5.5

1983

6.9

1999

6.5

2002

6.8

2007

4.0

2008

5.9