| Date - Field | Sierra Leone - Waterways |
2012 January Waterways | 800 km (600 km navigable year round) (2009) |
2011 January Waterways | 800 km (600 km year round) (2007) |
2010 January Waterways | 800 km (600 km year round) (2007) |
2009 January Waterways | 800 km (600 km year round) (2007) |
2008 January Waterways | 800 km (600 km year round) (2005) |
2007 January Waterways | 800 km (600 km year round) (2005) |
2006 January Waterways | 800 km (2003) |
2005 January Waterways | 800 km (2003) |
2004 January Waterways | 800 km (of which 600 km is navigable year round) |
2003 January Waterways | 800 km (of which 600 km is navigable year round) |
2002 January Waterways | 800 km (of which 600 km navigable year round) |
2001 January Waterways | 800 km (of which 600 km navigable year round) |
2000 January Waterways | 800 km; 600 km navigable year round |