Year	million passenger-km
1995	65
1996	30
1997	6
1998	4
1999	41
2000	38
2001	41
2002	38
2003	36
2004	34
2005	34
2006	36
2007	61
2008	78
2009	61
2010	59
2011	100
2012	54
2013	40
2014	35
2015	34
2016	24
2017	30
2018	40
2019	55.5
2020	15