2006

7.5

1998

6.0

2019

7.8

2009

5.8

2014

8.5

1968

7.8

1970

6.8

2003

6.3

1957

6.2

1982

7.9

1971

6.9

1988

5.2

1990

5.9

1992

6.6

1999

7.6

2024

7.2

1978

7.4

2017

7.5

2009

5.0