2003

6.6

2004

5.3

1970

3.8

1996

7.0

2007

6.4

1991

5.9

2006

6.3

2001

7.4

1973

3.7

2006

6.2

1977

4.6

2021

4.6

1991

4.5

2010

5.1

1978

6.0

1975

7.5

2017

6.3

2000

4.6

2022

5.6

2011

6.6