2017

8.0

1963

3.7

1995

7.0

2000

7.5

2003

7.6

2007

6.2

1964

6.0

1964

6.2

1987

5.5

2006

6.8

2005

5.1

2000

7.7

1985

6.3

2004

4.2

2006

7.8

1989

9.0

1990

9.0

1985

10.0

1989

10.0

1990

10.0