2012

6.5

1959

6.7

2000

6.8

2003

6.8

2000

6.4

1989

6.2

1982

5.2

2001

6.3

1996

6.4

2005

5.4

2006

5.4

1995

6.8

1993

6.7

1987

6.0

1985

7.1

2018

0.0

1986

6.6

1997

6.1

1964

7.5

2007

6.7