Complex sentence: Soon after his appointment, he announced that Quebec would increase its annual immigration rate from 30,000 to a figure between 40,000 and 45,000 by 2003, and that the province would raise its rate of francophone immigration from 44% to 52% in the same period.
Split into simpler sentences: Soon after his appointment, he announced that Quebec would increase its annual immigration rate from thirty thousand to a figure between forty and forty-five thousand by 2003. He also announced that the province would raise its rate of francophone immigrants from 44% to 52% in the same period.