1990

7.4

1983

6.8

2015

7.3

2021

8.7

2014

8.1

2010

7.7

2023

7.9

2007

7.5

1998

8.6

2025

9.6

2018

7.6

2010

8.1

2023

9.8

2016

7.0

2014

7.8

2022

7.7

1983

7.8

2004

7.2

2019

7.4

2012

7.0