2006

7.4

2004

5.5

2009

7.5

1996

2.0

1968

7.6

1988

7.1

2001

5.1

1989

3.1

2019

6.9

1975

5.5

1989

5.0

1976

5.7

1970

2.0

2012

4.4

1993

7.8

2002

5.6

2003

7.8

1984

5.1

2002

4.1

2015

3.0