1973

6.3

1971

5.8

1985

8.1

2004

6.4

2021

0.0

2024

0.0

1999

6.1

1974

6.8

2008

5.5

1983

6.2

2009

4.9

1970

7.2

1997

7.5

2009

6.6

1990

6.7

2006

5.6

1984

6.9

2023

0.0

1966

5.5

2022

7.0