2014

6.7

2003

5.9

2002

6.8

2001

7.3

1964

7.1

2004

5.6

1988

6.3

1970

7.1

2003

5.3

1996

5.3

1995

4.7

1903

5.5

2020

0.0

1982

5.7

1986

6.1

2005

5.3

2009

6.6

1997

5.9

1996

6.4

2017

6.9