year Passenger cars Buses/coaches Trucks
2000 415 1.74 2.98
2001 426 1.74 3.04
2002 434 1.76 3.12
2003 439 1.76 3.15
2004 445 1.76 3.17
2005 452 1.75 3.21
2006 457 1.73 3.1
2007 461 1.71 3.0
2008 465 1.68 2.99
2009 469 1.66 3.13
2010 474 1.64 3.06
2011 477 1.65 3.03
2012 480 1.65 3.06