2017

6.6

2004

8.0

2019

7.4

2015

7.6

2021

6.3

2006

8.3

2005

6.3

1991

6.4

1967

7.3

1977

6.8

1999

8.2

1994

8.1

1997

6.2

1991

6.3

1989

7.9

2002

6.2

1961

6.6

1983

7.9

2022

0.0

2022

5.3