2007

6.3

1959

6.4

1989

5.9

1993

5.3

1979

7.3

2004

5.7

2005

6.3

1968

5.8

1999

5.5

2016

7.7

2010

6.6

1916

6.7

1928

6.0

1932

6.4

1929

6.9

1998

4.8

2002

3.9

2018

4.8

2017

6.0

2025

0.0