1996

5.5

1984

5.9

1992

6.8

1987

5.3

2004

1.8

2005

6.3

1976

4.8

1999

7.3

1986

6.4

2000

5.2

2018

5.0

2014

4.5

1995

5.8

1989

3.0

2012

7.6

1990

5.9

2003

4.9

1987

4.9

2016

4.3

1981

6.9