1996

7.0

1968

5.5

2009

7.8

1993

6.0

1969

5.0

2001

5.6

1991

6.4

1994

5.1

2020

6.5

1985

0.0

2000

0.0

1998

7.1

1995

7.9

2020

2.0

1983

7.4

1981

7.3

1986

8.2

2010

8.1

2007

8.2

2020

10.0