2001

7.1

1998

6.4

2013

7.5

2023

7.0

2016

5.0

2018

6.9

2019

6.5

1997

6.2

2000

5.4

2017

6.8

1997

7.2

1996

6.3

2014

7.2

2000

6.9

2016

7.4

2015

6.9