1998

6.0

2006

5.5

1988

6.8

2006

5.2

2000

6.8

2018

6.7

2023

6.1

2005

5.1

1949

5.8

1984

7.1

1987

7.3

2002

6.2

2022

7.1

1978

7.3

2002

6.0

1972

6.3

1999

6.9

1993

7.8

1995

6.2

2022

4.3