2004

7.2

1999

7.4

1989

6.0

1993

8.1

2016

6.9

2012

7.4

2007

6.9

2022

8.5

2018

5.9

2018

7.2

1987

8.4

2009

7.0

2023

9.5

2016

9.5

1979

6.7

2004

9.1

2023

5.6

2019

8.2

1998

4.3