2016

6.3

2014

6.9

1949

7.6

2007

5.6

1982

6.0

2001

5.8

1986

6.6

2005

0.0

1966

6.5

1968

6.5

1974

6.6

1957

0.0

1987

6.8

1986

7.2

2003

4.0

1997

6.1

2002

5.4

1990

6.8

2007

5.2

1964

7.4