2003

7.6

1978

6.3

1988

6.2

2004

7.0

1995

6.8

2019

6.6

2008

6.2

1992

6.4

2004

7.3

1992

7.0

2008

5.8

2002

6.7

1986

6.2

1990

6.3

2007

5.3

2003

8.1

2002

6.6

2001

7.5

1989

7.2

1994

6.1