1995

0.0

1986

5.0

1988

5.7

1971

7.1

1982

6.5

1989

4.7

1992

4.6

1997

3.0

1990

5.6

1992

5.6

2000

4.5

2003

8.0

2006

5.8

2003

0.0

2008

5.0

2017

10.0

2024

8.0