1994

5.3

2010

8.1

1978

7.6

1981

6.4

2005

7.5

1995

6.0

2022

6.7

1992

7.0

1996

7.2

2018

5.9

2006

7.2

1993

6.5

1984

6.6

1996

7.8

2009

6.2

2011

7.4

2001

7.2