However, there are some limitations associated with same-sex couple data from the Census that need to be considered: The Census tells us how many same-sex couples live together, as well as the information about characteristics of people in same-sex couple relationships, such as their age, education, income levels and cultural diversity. Counts of same-sex couples living together in the same household have been compiled since the 1996 Census. 1 The Census of Population and Housing captures information on same-sex couples based on responses to the relationship and sex questions on the Census form. Australian families are characterised by increasing diversity - including a rise in the number of same-sex couple families.