2010

6.9

1993

7.9

1998

8.5

2007

5.5

2015

7.1

2022

3.5

2021

7.6

1987

8.4

1994

8.0

2014

7.7

1997

7.0

1995

7.8

2015

8.2

2004

5.5

1989

7.7

2004

8.2

1985

8.3

1973

6.8

1981

8.1

2006

4.7