1994

7.5

2005

7.2

1982

6.0

2008

3.2

1982

7.3

2003

5.3

2002

6.1

2018

6.9

2000

6.5

1982

6.2

1963

4.0

2006

7.6

2009

5.0

1993

7.2

1953

4.6

1991

2.0

2009

8.0

1986

4.1

1975

7.5

1969

6.7