2009

6.6

1968

6.1

1961

5.9

1964

7.3

1953

7.3

0.0

1952

8.2

2013

8.3

2007

7.1

1989

6.3

2004

5.8

2014

1.0

1982

5.2

2006

5.0

1992

6.6

1953

6.8

2020

0.0

1953

9.0

2003

7.5

1995

4.8