1991

6.4

1977

6.8

1999

7.9

1990

7.4

1998

7.1

1993

6.6

1995

0.0

0.0

2020

6.9

2025

7.6

2013

0.0

1998

7.8

2017

6.9

2000

6.8

1997

8.2

1996

6.7

2021

7.8

2017

6.0

2017

6.8

2017

8.4