2017

6.7

2019

7.0

1971

4.9

2002

6.4

2005

6.5

2000

0.0

2003

6.2

1965

8.1

2008

7.3

2024

0.0

0.0

1992

4.9

1991

5.6

2004

3.8

1989

6.0

2008

6.8

1957

5.2

2005

6.1

2011

5.0

1998

5.8