ABIDJAN, Oct 30 (Reuters) - Ivory Coast's rubber exports rose nearly 14 percent to 226,399 tonnes by the end of September since the start of the year compared with the same period last year, provisional port data showed on Wednesday. Ivory Coast, the world's top cocoa producer, is also Africa's leading grower of natural rubber. Rubber exports have grown in recent years as farmers, lured by the promise of more stable incomes, have increasingly made the switch from cocoa. Following are port figures in tonnes for September: Sept 2013 Aug 2013 Sept 2012 Abidjan 14,991 10,171 13,666 San Pedro 13,571 11,662 9,852 Total 28,562 21,833 23,518 Cumulative from Jan 226,399 197,837 199,277 NOTE: September data for Abidjan is provisional and could be subject to revision. (Reporting By Loucoumane Coulibaly; Editing by Bate Felix)