2002

7.5

1992

6.9

2014

7.4

2014

7.3

2017

7.9

2019

8.1

2021

7.8

2014

7.1

2013

7.5

2014

7.6

2001

8.0

2003

8.2

1989

7.9

2017

7.5

2016

7.6

2017

7.6

1984

7.0

2004

6.6

2015

7.5