All data used come from 2001 Census and refer to the 2000-01 period (12 months before the Census)

• All data used come from 2001 Census and refer to the 2000-01 period (12 months before the Census)

• Special Migration Statistics provide:

• - Migrants by age by sex (Table MG201)

• - Migrants by ethnic group by sex (Table MG203)

• i.e. no breakdown of migrants by ethnicity and age

• Commissioned tables from ONS:

• CO711: District to district flows

• CO723: Part 1: ward to region flows

• Part 2: region to ward flows

• disaggregated by 7 age groups (0-15, 16-19, 20-24, 25-29, 30-44, 45-59, 60+) and 7 ethnic groups