2007

0.0

2017

6.4

2015

5.0

2014

6.2

1990

7.0

2018

7.4

1981

7.1

1961

7.2

1988

6.7

1966

7.5

1989

6.8

2002

7.6

2003

7.4

1997

5.6

2006

6.0

1991

0.0

1971

6.9

1990

6.8

1986

6.8

1995

7.3