2015

7.4

1985

5.6

2005

5.9

2001

5.5

2023

7.5

1989

5.7

1997

6.9

2016

6.0

1996

5.9

2020

5.3

2008

6.7

1970

6.9

2018

7.3

2007

5.8

2004

7.6

2007

6.1

2017

6.5

2004

7.1

2018

6.3

2011

6.8