2001

6.4

2000

7.2

2006

6.6

2014

6.2

2001

7.9

1971

7.1

1992

6.7

1989

5.1

1988

6.0

2006

6.2

1987

7.5

2003

6.2

2022

4.5

2012

7.3

2002

6.4

2013

6.1

1970

6.3

1993

7.5

2013

5.8

1994

7.9