2001

6.6

1975

7.5

1984

6.8

2002

8.4

1977

6.8

1993

4.9

1987

6.5

2015

7.1

1992

7.3

2004

7.2

2019

8.0

2002

5.3

2019

7.9

2003

6.2

1981

6.2

1994

6.5

7.3

1966

8.5

1982

7.6

2007

5.6