1988

5.8

2017

4.9

1995

7.3

2002

6.4

2000

7.1

2001

6.9

2001

6.8

2007

6.9

1972

6.2

2003

6.6

1977

7.4

2002

6.1

1985

0.0

1995

7.3

1970

7.2

1977

0.0

1992

5.0

1992

6.9

2024

6.3

2017

4.5