2001

7.8

1983

5.8

1991

7.2

2008

6.6

2023

7.5

1989

6.0

1998

6.6

1974

7.9

1998

6.8

2014

4.1

1989

7.7

1987

7.3

1989

7.0

1992

6.7

1998

6.6

1995

7.9

2001

6.1

2003

6.2

1979

5.8

2016

4.9