2014

7.7

2001

4.5

2006

5.6

2015

4.5

1971

3.2

2004

4.2

2005

6.8

1997

6.6

1954

7.1

1969

7.5

2000

4.8

2005

6.4

2009

7.1

1986

6.7

2002

7.1

1978

4.7

2019

6.2

1980

6.0

2007

6.5

2006

7.4