Year	million passenger-km
1995	10796
1996	11329.5
1997	11433.8
1998	11314.75
1999	11329.15
2000	11217.85
2001	11899.1
2002	12430.5
2003	13282
2004	13863.5
2005	14297.8
2007	15606.5
2008	24731
2011	14335.5
2012	8787
2013	8253
2014	19779
2015	14499.5
2016	21201