2021

6.5

2018

7.6

2003

4.8

2016

5.5

1988

5.1

1975

6.0

1984

5.3

2000

6.0

2020

6.3

1988

7.2

2023

7.5

1998

7.2

2014

7.4

2019

7.9

1988

6.9

2002

6.0

2002

6.7

2013

6.9

2021

7.3

2025

7.8