1984

7.2

1998

6.5

2013

6.0

2003

7.2

2016

0.0

2006

6.9

2002

7.5

2000

7.4

1968

0.0

2005

6.2

1991

7.1

1993

6.9

1989

5.9

2000

4.4

2008

7.1

2001

5.7

2024

0.0

1992

4.5

1986

6.3

1993

7.2