1982

7.5

1996

6.9

1997

7.2

2002

6.4

1970

4.5

2023

6.5

2018

6.5

2024

10.0

1978

7.2

1985

6.9

1984

6.6

1985

6.3

1988

5.7

1995

6.1

2014

5.9

2008

0.0

2009

6.8

2005

6.5

1987

7.5

1989

5.4