2014

6.6

2012

3.1

1981

6.0

1983

6.0

1990

3.7

2015

5.0

1983

5.0

1998

5.3

2003

5.6

1999

8.2

1992

6.3

1989

5.1

1998

4.6

2008

1.0

1993

6.0

1985

6.1

1986

5.8

1987

5.5

1988

5.2

1989

5.2

2018

5.5

2002

7.1

2024

0.0

1982

5.6

1999

5.5

1990

4.3