1975

7.0

2019

7.1

2011

8.1

2010

7.9

2000

7.6

2002

8.6

2006

7.9

2005

7.9

1987

7.2

1994

7.6

1975

7.3

2013

0.0

2019

5.0

2016

1.0

1994

7.2

1988

7.4

2025

0.0

1982

6.4

2002

8.2

2008

6.9