1999

8.3

2009

7.8

2023

7.7

5.0

2021

7.0

1996

7.6

2015

6.0

2019

4.5

2024

8.0

2009

10.0

1991

8.0

1957

6.4

2023

3.5

1986

7.0

1983

7.1