2002

6.0

1997

5.7

2005

6.5

2006

5.5

2005

5.5

1994

6.8

1996

5.6

1972

5.4

2022

7.5

1995

6.1

1978

6.1

2010

10.0

1989

4.6

1974

7.7

1990

5.7

1991

7.7

2001

6.0

2016

0.0

2009

5.9

2010

6.4