2001

7.0

1953

7.4

1997

6.7

2012

6.2

1964

7.9

2012

7.5

1948

7.8

2005

6.7

1971

6.7

2007

7.3

1951

7.0

2008

5.5

1969

7.6

1990

6.9

1986

7.1

1960

6.4

2014

6.2

1956

8.0

2013

6.1

2002

5.1