2005

5.5

1992

5.8

2004

6.7

2008

7.6

2002

0.0

2001

6.9

1973

0.0

2008

6.9

1956

6.0

1982

1.0

1982

1.0

1970

0.0

1972

7.4

1990

5.0

1988

5.5

1998

6.2

1978

4.3

1968

3.5

1963

0.0

2019

7.0