1993

7.3

1970

7.4

2003

5.5

2017

4.3

2003

7.4

2001

7.2

2015

6.4

2006

5.2

1991

6.8

2007

6.3

2013

5.7

2022

4.3

2006

6.9

2019

5.7

1998

6.5

1994

8.3

2022

9.0

1964

6.1

1963

7.6

2009

6.2