{"title":"Returns by type and year","source":"Returns summary tables, year ending March 2026 (Home Office, Immigration system statistics)","sourceUrl":"https://www.gov.uk/government/statistical-data-sets/immigration-system-statistics-data-tables","period":"calendar years 2004 to 2025","asOf":"2026-08-09","licence":"https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/","columns":["year","enforced","voluntary"],"rows":[["2004",21425,3566],["2005",20808,7601],["2006",19372,12599],["2007",13874,20453],["2008",13433,24356],["2009",12507,29765],["2010",13928,31762],["2011",14566,30088],["2012",15134,31002],["2013",14850,31694],["2014",13541,27815],["2015",12921,30210],["2016",11903,28474],["2017",11741,20979],["2018",9236,15702],["2019",7198,12574],["2020",3383,5009],["2021",2788,7352],["2022",3806,11014],["2023",6362,20475],["2024",8170,26771],["2025",9912,29459]]}