1999

5.3

2009

7.4

2013

3.2

2001

6.5

1990

7.5

1996

7.3

1984

7.7

2024

0.0

2004

6.2

2007

7.7

2003

5.7

2001

6.1

1992

5.3

2007

5.2

1968

6.5

1988

5.3

1994

6.0

1992

5.4

1986

6.9

2005

4.8