| Date - Field | Sri Lanka - Waterways |
2012 January Waterways | 160 km (primarily on rivers in southwest) (2008) |
2011 January Waterways | 160 km (primarily on rivers in southwest) (2008) |
2010 January Waterways | 160 km (primarily on rivers in southwest) (2008) |
2009 January Waterways | 160 km (primarily on rivers in southwest) (2008) |
2008 January Waterways | 160 km (primarily on rivers in southwest) (2006) |
2007 January Waterways | 160 km (primarily on rivers in southwest) (2005) |
2006 January Waterways | 160 km (primarily on rivers in southwest) (2004) |
2005 January Waterways | 160 km (primarily on rivers in southwest) (2004) |
2004 January Waterways | 430 km (navigable by shallow-draft craft) |
2003 January Waterways | 430 km (navigable by shallow-draft craft) |
2002 January Waterways | 430 km (navigable by shallow-draft craft) |
2001 January Waterways | 430 km (navigable by shallow-draft craft) |
2000 January Waterways | 430 km; navigable by shallow-draft craft |