Complex sentence: In the 1950s there was large scale immigration from Pakistan and to a lesser extent from Poland, an estimated 101,967 people of South Asian origin reside in the city, representing around 20.5% of the city's population.
Split into simpler sentences: In the 1950s there was large scale immigration from Pakistan and to a lesser extent from Poland. An estimated 101,967 people of South Asian origin reside in the city, representing around 20.5% of the city's population.