2011

6.8

1990

8.5

2005

7.4

1972

7.8

2001

7.5

1982

7.7

2015

7.2

1999

8.0

2009

7.0

2024

6.4

1974

8.6

1998

8.1

1998

7.2

1944

8.1

1999

8.0

2004

7.6

2002

7.8

1998

7.0

2016

7.5

2008

6.5