1986

6.3

2005

7.2

2021

7.3

1970

7.1

1999

6.4

2010

6.5

2006

6.2

2002

6.1

2021

7.2

1997

5.6

2005

6.5

1966

6.7

1996

7.8

2001

7.0

2009

0.0

2017

7.0

2013

5.5

1999

7.0

1998

6.6

1994

4.7