2010 - 56,000 km
2008 - 100,000 km
2010 - 86,600 km
2013 - 86,884 km
2011 - 69,000 km
2015 - 51,000 km
2009 - 74,000 km
2013 - 90,000 km
2011 - 290,000 km
2012 - 990,000 km
2012 - 100,000 km
2012 - 56,000 km