1984

2.0

2001

7.8

1980

7.3

1997

6.6

1999

6.3

2002

6.0

2005

5.4

1999

7.1

1987

6.8

2024

8.0

2020

0.0

2004

7.5

1975

7.8

2015

5.8

1979

7.8

2002

4.4

1987

7.1

1993

6.6

2013

4.8

2014

4.0