1996

7.5

1988

6.1

1996

6.4

1968

5.7

2019

5.5

2007

6.6

2016

6.2

2013

6.3

1986

6.6

2015

7.4

2003

6.8

2021

5.3

2007

6.3

2014

5.4

1997

7.5

2016

6.1

2006

6.3

2020

6.1

2013

6.7