The latest published statistics on returns can be found on-line at https://www.gov.uk/government/statistics/immigration-statistics-year-ending-december-2018
Deportations are a subset of enforced returns. They may occur either following a criminal conviction, or when it is judged that a person’s removal from the UK is conducive to the public good. Information on those deported is not separately available. Published statistics refer to enforced returns, which include deportations, as well as cases where a person has breached UK immigration laws, and those removed under other administrative and illegal entry powers who have declined to leave voluntarily. Most illegal immigrants are removed from the UK under administrative or illegal entry powers and not deported.
The Home Office does not hold the information requested centrally. Providing the information requested would require a trawl through Immigration databases, which could only be done at disproportionate cost.