1990 - 100,000 km
2014 - 109,000 km
2013 - 64,000 km
2013 - 38,000 km
2008 - 95,000 km
2008 - 116,700 km
2014 - 85,000 km
2006 - 1 km
2017 - 0 km
2006 - 0 km
1998 - 0 km
2012 - 70,000 km