1999

0.0

2019

7.1

1994

6.2

1988

7.5

1989

8.3

1986

7.9

1994

6.8

2002

6.7

1988

6.8

1996

6.6

2003

7.8

2002

7.1

1990

7.8

1997

6.9

2004

7.4

1987

8.1

2003

7.6

1996

8.0

1989

7.4

2002

6.1