2006

6.2

2002

6.8

2019

6.8

2004

7.3

1986

7.4

1994

6.1

1988

7.0

2004

7.1

2001

6.5

1994

8.0

1975

6.1

2008

6.1

2023

0.0

1977

0.0

1980

5.2

1994

6.8

0.0

2005

6.1

1977

5.5

2007

5.0