The Office for National Statistics (ONS) is the UK's largest independent producer of official statistics and is the recognized statistical institute of the UK. The ONS has produced data that shows over the next 25 years, net international migration will account for almost three-quarters of the UK's population growth. Since it is the responsibility of NHS service providers to ensure translation and interpretation services are available to all patients who do not speak English as their first language, the interviewers are keen on hiring candidates who speak additional languages. Discuss any foreign languages you speak fluently and even those that you have some understanding of.