2009

4.6

2006

6.8

1977

5.5

2016

7.4

2018

7.4

1982

6.5

2005

5.9

1959

5.6

1944

4.3

1992

6.0

1995

6.3

1996

6.5

2003

6.0

1986

4.8

1998

6.9

1985

5.4

2017

5.8

2006

6.5

2002

6.5

2007

6.6