Question to the Home Office:
To ask the Secretary of State for the Home Department, how many M1N1 application forms have been submitted in each of the last three years; and what proportion were (a) refused and (b) withdrawn.
The available information relates to total grants and refusals of citizenship by general category, and are published in the quarterly Immigration Statistics citizenship table cz_01 and , latest available at https://www.gov.uk/government/publications/immigration-statistics-year-ending-december-2018/list-of-tables#citizenship
The large majority of cases decided in 2018 were grants (94%).