1972

7.1

1991

8.3

1995

6.5

1992

6.9

1999

8.5

1992

8.1

2003

7.2

2006

1.5

0.0

1968

5.0

1978

7.6

1971

7.4

2024

0.0

2006

5.7

2007

6.2

2000

7.4

2023

7.2

1990

4.0

1991

5.0

2024

0.0