1996

7.5

2018

7.9

2025

6.8

2016

7.6

2021

8.0

2010

7.6

2016

7.3

2002

7.8

2000

6.9

2015

8.4

1999

7.4

2016

7.0

2023

6.6

1988

7.1

2015

7.2

2022

6.7

2015

7.5

2014

6.9

2021

7.6

1984

8.3