1989

4.7

1998

5.4

1998

6.8

1990

0.0

2012

6.3

1996

4.0

2014

6.4

1994

4.2

1986

0.0

1992

4.5

1960

7.1

2002

10.0

1992

7.0

1994

5.1

2009

6.0