1990

7.0

2017

10.0

2014

7.2

2008

8.8

5.8

1996

5.3

2005

5.9

1999

7.5

2006

8.6

2023

8.1

2021

7.6

1998

7.0

2021

7.6

2022

8.0

2008

7.6

1996

8.1

2023

9.9

2024

7.3

2025

7.7

2016

7.0