2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 20160

0.5

1

1.5

2

2.5

3

3.5

1.62

1.92 1.91 22.17

1.86 1.84 1.91 1.962.07

2.41

2.97

GPS