2014

5.4

1954

7.9

1984

8.1

1967

6.6

1969

6.6

1971

6.4

1977

6.8

1951

7.6

2000

7.1

1998

8.3

2000

8.2

1987

7.3

1994

8.3

1983

8.2

1932

7.8

2004

7.4

1986

7.6

1999

6.8

2006

5.6

1995

8.4