2020

5.8

2016

7.4

1995

7.9

1989

8.3

1999

7.4

1999

7.7

1996

7.2

2002

8.4

1993

8.6

2001

7.9

2000

7.4

2003

7.2

0.0

2015

6.0

2014

6.9

2014

6.2

1979

6.9

1979

7.4

1979

7.7

1987

7.6