1992

8.1

2008

6.7

2005

7.6

1997

4.8

2022

5.6

1994

7.5

2002

5.3

1995

7.9

1984

5.8

2013

7.1

2006

6.1

2006

4.5

2004

5.3

1989

6.4

2015

7.0

2003

8.2

1982

4.2

2002

8.0

1987

5.9

2003

6.7

2002

7.1

1988

6.1

2011

6.1

1995

7.5