2007

7.2

2007

5.2

2004

6.7

2004

5.9

2002

4.4

1966

6.1

1993

4.3

1990

6.0

2009

7.6

2009

6.3

2021

6.4

2017

6.1

1984

6.3

1956

6.5

2006

7.0

2004

7.0

2003

7.1

2003

6.7

1971

6.4

2005

6.8