1995

7.4

2009

7.5

1996

7.8

2012

10.0

2016

6.9

2020

6.8

2006

8.2

1972

4.0

2018

8.1

1999

6.8

2005

5.2

1985

7.5

1983

9.0

1965

7.8

2013

7.3

2006

5.0

1987

4.8

1982

8.1

2024

0.0

1970

5.5