2006

7.4

1971

6.0

1972

5.6

2005

6.3

2014

6.0

1993

7.8

2002

5.6

2009

7.5

1988

7.1

1995

4.1

1969

3.8

2004

5.4

1968

2.7

2018

4.4

1997

0.0

1999

5.5

1988

3.6

1997

1.8

1966

5.9

2000

3.7