2015

8.0

1979

6.8

1990

7.6

1999

9.2

1973

8.0

2021

7.7

2017

7.1

1984

7.8

2017

7.6

1991

7.3

2017

6.5

1995

6.4

2022

7.3

1994

7.4

2017

5.7

1999

7.0

1993

7.0

1981

6.1

1998

7.2

2013

7.5