2006

5.0

1973

5.2

1994

3.2

1979

5.3

2001

3.5

1999

3.0

2000

6.4

2001

5.8

2007

5.6

1970

3.8

2007

3.8

2007

7.0

2015

2.0

2020

6.5

2004

6.3

1994

5.8

1993

5.0

1979

5.3

1969

5.1

1971

6.6