2002

7.3

1928

6.0

1981

6.2

1971

6.8

2013

6.9

1997

6.6

1994

5.9

1999

7.4

2008

6.4

2004

7.2

2000

6.3

1975

8.4

1985

6.1

2011

7.0

1995

7.3

1990

6.4

1992

6.7

1999

8.0

2013

7.0

2007

6.7