2011

6.9

1965

6.8

1980

7.3

2013

7.3

1981

5.9

2019

6.4

1964

7.0

2004

5.6

1972

6.2

2013

5.9

2001

6.4

2010

6.6

2002

7.1

2004

6.0

1986

6.7

2006

7.8

2012

7.1

2007

7.4

1994

5.6

1995

6.3