2017

7.0

1950

6.8

1997

6.2

1989

5.8

1989

6.4

1965

7.9

1977

6.6

2007

5.3

1951

7.5

1934

6.7

1982

6.2

2008

5.6

2006

6.9

2013

5.5

2009

4.7

2005

7.6

2000

5.7

1997

6.0

1988

6.2

1931

7.0