1990

4.4

1988

5.5

2020

6.7

1972

7.5

2021

6.1

6.5

2015

6.5

2003

6.6

2019

6.8

2023

10.0

1973

5.9

1994

6.9

2023

5.6

2011

7.3

2023

6.8

1989

6.1

2006

6.7

2013

6.9

2024

6.7