1968

7.1

2001

2.0

2007

0.0

1977

6.8

1971

8.1

2002

5.2

1990

6.9

2001

4.2

1977

3.2

1999

4.3

1978

6.3

1973

7.0

2001

4.2

2001

4.0

2001

5.5

1976

5.2

1979

7.1

1976

6.7

1981

6.0

2001

3.0