1995

5.7

2000

2.6

1996

6.0

2007

6.5

2008

8.5

2013

0.0

1982

5.7

1983

4.3

1960

6.1

1997

5.9

2009

6.6

1927

0.0

2014

6.7

2024

10.0

1990

4.9

1992

7.1

1983

5.4

2007

4.0

1986

6.1

2002

6.8