2006

4.4

1999

6.7

2007

6.7

2002

6.6

2004

6.4

2004

7.1

1998

5.6

1969

6.6

1986

8.0

2021

0.0

2020

8.0

2017

6.5

2003

5.4

2008

5.9

1991

6.4

1990

6.4

1979

5.8

1990

6.3

1994

5.8

2017

5.8