2015

7.4

1987

6.9

1968

6.9

2008

5.2

1985

7.0

1972

10.0

1984

6.7

2012

5.5

2010

4.8

2024

6.8

2024

7.6

2012

6.3

1992

6.2

2009

7.5

1939

7.8

1998

4.6

1931

6.9

1969

6.5

2002

7.7