1999

7.4

2004

8.3

2016

7.1

2004

7.6

2007

7.9

2002

7.7

2011

7.4

2017

8.2

2023

9.7

2014

7.6

1990

7.5

2013

7.2

2005

6.8

2014

6.7

2008

8.8

1989

8.5

1980

5.8

2021

5.6

2019

10.0

1984

7.3