1994

6.4

1999

5.2

1980

5.3

2002

5.0

2001

7.8

2022

8.2

2001

8.5

1985

8.3

2013

8.1

1994

8.7

2009

7.6

2016

7.6

1972

8.7

2019

8.1

2016

7.6

2019

7.4

2018

7.4

2023

8.1

2015

7.5

2019

8.5