1983

7.8

2020

7.4

2016

6.6

1979

7.1

2002

5.8

2007

6.9

1998

6.3

2023

7.7

2009

4.5

1966

6.6

1982

7.0

2008

6.6

2008

6.3

2020

7.5

1995

6.6

1989

6.5

1981

6.9

1968

5.8

1985

4.3

2019

6.1