Complex sentence: In 2001, there were only 10 radio stations in Congo and in 2007, when he left to return to France, the Democratic Republic of Congo had over 250 associative and community radios, the same number as South Africa.
Split into simpler sentences: In 2001, there were only 10 radio stations in the Congo. When he left the country in 2007 to return to France, the Democratic Republic of Congo had over 250 associative and community radios, the same number as South Africa.