Complex sentence: The amount of groundnut crop which the Mourides produce has been estimated to range from one-third to three-quarters of Senegalese groundnut production, although others have now estimated it to equal around one-half of the national total of groundnuts produced.
Split into simpler sentences: The amount of groundnut crop which the Mourides produce has been estimated to range from one-third to three-quarters of Senegalese groundnut production. Although others have now estimated it to equal around one-half of the national total of groundnuts produced.