2013

8.0

1968

5.8

1999

5.5

1979

7.3

2008

7.0

2000

6.0

1993

5.3

1989

5.9

2007

6.3

2004

5.7

2013

4.0

1959

6.3

2005

6.2

2016

7.7

2017

6.0

1916

6.7

2018

4.8

1928

6.0

1932

6.3

1929

6.9