1991

6.7

2004

6.5

1992

7.8

1974

6.1

2016

8.0

1965

7.1

1989

6.4

1974

7.6

1973

7.5

1971

5.8

2016

5.6

2013

6.8

1957

6.7

1974

7.5

2023

7.0

1978

5.3

1980

8.5

1965

6.2

2020

5.2

2011

6.0