1998

6.7

1978

7.3

1971

6.4

1995

9.7

2007

8.2

1966

8.5

1997

9.0

1975

8.1

1984

9.1

2013

4.6

2023

0.0

2015

8.0

1989

7.9

2023

8.0

2005

7.9

2000

8.0

2006

8.1

2019

7.2

1981

8.3

2002

8.9