translate English to French: The number of departures in landlocked developing countries as a group dropped to 135,061 in 2006 from 146,139 in 2000.  Pipelines provide the most cost-effective means of transport for both crude oil and its finished products.
Le nombre des décollages dans les pays en développement sans littoral pris ensemble a diminué, passant de 146 139 en 2000 à 135 061 en 2006.