1995

8.4

1999

7.4

1957

7.8

2005

7.0

2002

7.6

1974

5.5

1995

7.3

2004

6.6

1988

7.7

2005

7.2

1954

7.6

1955

6.0

2019

8.2

1999

7.5

2007

6.7

1989

6.6

1974

5.5

2015

4.0

2004

8.7

2022

7.3