2007

9.5

1978

9.7

1997

6.8

1972

7.4

1991

7.7

2015

5.3

2019

7.6

2012

4.0

2008

6.0

2011

5.8

2021

4.7

2015

6.6

1996

8.2

1999

5.8

2012

6.8

2016

6.2

1984

6.0

1979

7.5

2022

8.5

2016

7.0