2018

6.7

2012

0.0

1995

7.1

2000

2.0

1999

7.3

2012

1.0

1984

6.6

2002

6.6

2003

7.8

1970

6.1

1991

0.0

2002

0.0

2018

6.5

2020

6.9

2009

7.5

1996

6.4

2011

8.1

2009

8.0

1975

7.0

2010

7.9