2010

8.0

2013

7.6

1967

7.7

1969

6.6

1961

6.9

1988

5.5

2005

7.7

2003

6.1

7.8

2003

6.9

2013

7.2

2015

6.5

1936

8.3

1955

7.2

1993

6.1

1990

7.4

2003

7.4

1960

8.2

1962

7.9

2004

7.9