2017

6.5

2004

7.6

2001

6.8

1993

5.9

2007

6.6

2003

7.4

2010

8.5

2003

6.5

2012

6.9

1991

5.9

2002

7.1

2021

8.0

2019

6.4

1990

7.0

2011

7.4

2023

6.9