1999

5.3

1993

4.5

1986

6.0

1984

0.0

1991

6.8

1996

6.3

1994

6.1

2007

6.8

2001

4.7

2004

6.6

1994

5.1

1987

6.6

2014

0.0

2014

6.3

2021

5.0

1961

7.3

1989

4.0

2017

6.7

2007

5.3

2005

6.3