2020

6.5

1988

6.5

2003

6.8

1994

6.3

1998

6.2

2019

6.5

1971

6.1

2005

5.2

1996

6.5

1989

6.2

1999

5.9

2013

6.7

1994

6.7

1993

6.2

1993

6.6

2017

6.6

1995

5.6

2020

6.7

1998

6.4

2017

6.3