1999

7.3

2012

6.8

1988

6.6

2017

6.7

1985

4.1

2024

7.0

1998

6.0

2006

5.3

1987

4.5

2024

6.0

2016

5.9

1988

7.4

2005

5.1

2016

7.1

2016

7.1

1968

6.2

2016

6.6

2019

5.8

2020

5.6

2019

6.8