2021

7.4

2015

6.4

2015

6.6

1985

6.1

1975

7.0

2013

7.6

2021

8.2

2020

6.4

2024

6.5

1998

7.1

2023

6.4

2003

6.9

2025

7.3

2009

8.8

1989

7.0

1992

6.5

2025

6.2

1997

5.9