1984

6.5

1979

7.2

1980

5.9

2002

6.3

2000

7.4

1990

5.9

1981

6.8

2017

5.1

2007

3.8

2017

6.7

1987

6.5

2004

3.8

1989

6.0

2024

0.0

1992

4.9

2010

4.5

2008

6.8

1999

5.4

2019

8.0

1991

5.6