2017

7.8

2005

5.5

2016

6.3

2022

6.4

1999

5.5

2002

4.9

2009

6.3

2016

6.2

1992

4.7

1977

7.7

1996

7.3

2002

6.0

2019

5.8

1995

7.0

1994

5.3

1995

7.2

2006

7.0

2005

6.9

1960

7.5

2014

6.1