Original sentence: A congressional investigation in 2002, led by socialist congressman Javier Diez Canseco (a vigorous opponent of Fujimori during the 1990's), concluded that of the US$9 billion raised through the privatisations of hundreds of state-owned enterprises, only a small fraction of this income ever benefitted the Peruvian people
Edited sentence: But of the US$9 billion his administration raised in privatisations of hundreds of state-owned enterprises, a congressional investigation in 2002 led by socialist congressman Javier Diez Canseco(vigorous opponent of Fujimori during the 1990's) postulated that only a small fraction of this income ever benefitted the Peruvian people