Year	total route-km
1995	2850
1996	2850
1997	2856
1998	2794
1999	2813
2000	2814
2001	2814
2002	2881
2003	2818
2004	2849
2005	2839
2006	2839
2007	2838
2008	2842
2009	2842
2010	2842
2011	2794
2012	2541.254
2013	2544.349
2014	2545.96
2015	2545.96
2016	2545.96
2017	2545.96
2018	2545.96
2019	2526.149
2020	2526.149
2021	2527.053