1990

7.8

1987

6.2

1985

6.0

2004

4.2

2003

7.8

1958

6.7

1989

8.0

2005

8.0

1991

4.2

2023

9.0

2017

8.0

2001

6.5

2020

8.0

1987

7.7

1966

6.4

2006

7.5

2023

10.0

2012

0.0

2013

7.5

1969

8.0