2006

6.6

2007

6.8

2000

7.2

1990

8.5

1991

5.9

1978

7.5

2004

7.1

2002

7.2

1998

6.8

2014

4.6

2013

5.7

2024

0.0

2025

2.0

2019

7.9

2014

5.4

2015

4.7

2002

6.1

2006

5.9

2007

5.8

2003

6.1