2003

5.0

1991

5.6

1993

6.9

1997

5.3

1995

5.3

1995

6.1

2019

6.6

1998

6.1

1994

6.0

2013

5.5

1993

6.1

1999

6.2

1981

6.1

1994

6.5

2001

5.6

1993

5.4

1997

5.7

1996

6.7

2006

6.9

1998

6.3