| Date - Field | Poland - Waterways |
2008 January Waterways | 3,997 km (navigable rivers and canals) (2006) |
2007 January Waterways | 3,997 km (navigable rivers and canals) (2005) |
2006 January Waterways | 3,997 km (navigable rivers and canals) (2003) |
2005 January Waterways | 3,997 km (navigable rivers and canals) (2003) |
2004 January Waterways | 3,812 km (navigable rivers and canals) (1996) |
2003 January Waterways | 3,812 km (navigable rivers and canals) (1996) |
2002 January Waterways | 3,812 km (navigable rivers and canals) (1996) |
2001 January Waterways | 3,812 km (navigable rivers and canals) (1996) |
2000 January Waterways | 3,812 km navigable rivers and canals (1996) |