| Date - Field | Niger - Waterways |
2012 January Waterways | 300 km (the Niger, the only major river, is navigable to Gaya between September and March) (2010) |
2011 January Waterways | 300 km; (the Niger, the only major river, is navigable to Gaya between September and March) (2008) |
2010 January Waterways | 300 km (the Niger, the only major river, is navigable to Gaya between September and March) (2008) |
2009 January Waterways | 300 km (the Niger, the only major river, is navigable to Gaya between September and March) (2008) |
2008 January Waterways | 300 km (the Niger, the only major river, is navigable to Gaya between September and March) (2005) |
2007 January Waterways | 300 km (the Niger, the only major river, is navigable to Gaya between September and March) (2005) |
2006 January Waterways | 300 km note: Niger River is navigable to Gaya between September and March (2004) |
2005 January Waterways | 300 km note: Niger River is navigable to Gaya between September and March (2004) |
2004 January Waterways | 300 km note: the Niger River is navigable from Niamey to Gaya on the Benin frontier from mid-December through March |
2003 January Waterways | 300 km note: the Niger River is navigable from Niamey to Gaya on the Benin frontier from mid-December through March |
2002 January Waterways | 300 km note: the Niger River is navigable from Niamey to Gaya on the Benin frontier from mid-December through March |
2001 January Waterways | 300 km
note: the Niger River is navigable from Niamey to Gaya on the Benin frontier from mid-December through March |
2000 January Waterways | the Niger is navigable 300 km from Niamey to Gaya on the Benin frontier from mid-December through March |