2003

5.0

1986

6.8

2004

9.9

1989

7.9

1999

5.7

1981

6.5

1994

4.5

2006

6.9

2010

6.7

2016

5.9

1998

8.6

1952

7.7

2011

6.9

1990

6.1

1958

6.9

1980

6.2

1992

6.9

1992

6.0

1961

7.2

1924

7.1