1999

4.7

2015

8.7

2000

5.8

2021

4.0

1990

6.9

1994

7.8

1998

6.6

2009

6.8

2015

6.3

1985

6.3

1986

6.0

1982

7.5

1978

0.0

2004

6.5

1995

5.4

2005

7.7

1992

4.5

1986

6.6

2001

8.0

1994

7.0

1989

5.0

2009

7.9

2003

7.2

1996

6.0

1991

7.4

2020

6.8

2007

6.4

1990

6.8