1996

5.4

1992

5.8

2019

8.1

1980

9.0

2004

8.3

2009

5.9

2023

7.3

2003

8.2

1978

9.7

2022

7.5

2021

7.7

2009

7.6

1989

7.5

5.8

1993

6.7

2024

8.0

2019

8.0

2021

8.5

1979

7.8