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	*Highway, Bridge and Ferry*

Year	Highways in Service (km)		Maintenanced Highways (km)	Bridge (unit/meter)	Ferry (unit)
Year	Highways in Service (km)	Length of Highways in All Weathers	Maintenanced Highways (km)	Bridge (unit/meter)	Ferry (unit)
1959	7343	4951
1965	14721	5713	5792	631/11286	6
1970	15098	6995	5792	643/13741	7
1975	15852	7247	6342	658/15420	7
1980	21551	20663	7944	712/18358	10
1985	21660	20733	17863	730/19845	10
1990	21842	20978	17981	777/21697	10
1995	22391	20988	17081	882/23988	10
1997	22455	16719	17981	948/27775	8
1998	22455	8895	17981	948/27775	7
1999	22475	8895	17981	948/27775	7
2000	22503	8895	17981	1011/29472	7