2007

7.3

2002

6.2

1998

5.0

2021

5.9

2014

5.4

1983

6.1

2011

6.9

2003

5.5

2003

6.9

1990

6.0

2007

6.5

1962

7.6

2015

5.7

1995

5.6

2016

6.2

2012

5.5

1994

6.4

2013

7.9

2011

5.6

1991

6.5