{"schemaVersion":"1.0","id":"how-old-is-that-rating","dataset":"hygiene-age","title":"How old is that rating","description":"The sticker in the window may be years out of date.","methodology":"How long ago each London premises was last inspected, as a share of all rated premises. A rating is a snapshot of one day and stays on display until the next inspection, so the age of the rating is part of what it means — a five in the window from four years ago is a weaker claim than a five from last month.","category":"environment","categoryLabel":"Environment","cadence":"monthly","placeholder":false,"landingPage":"https://londongraph.com/g/how-old-is-that-rating","markdown":"https://londongraph.com/g/how-old-is-that-rating/index.html.md","source":{"name":"Food Standards Agency","url":"https://ratings.food.gov.uk/","licence":"Open Government Licence v3.0","licenceUrl":"https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/"},"updatedAt":"2026-07-31T15:33:53.671Z","release":{"label":null,"publishedAt":null,"resourceUrl":null,"methodologyUrl":null,"sha256":null},"observations":[{"series":"","buckets":["Within a year","1–2 years ago","2–3 years ago","3–5 years ago","Over 5 years ago"],"values":[45.7,32.3,12.2,5.9,3.8],"unit":"% of rated premises","metadata":[{},{},{},{},{}]}],"areaStatistics":null,"visualizations":[{"id":"age-bands","label":"Rating age","description":"Compare dated numeric ratings by elapsed-time band.","url":"https://londongraph.com/g/how-old-is-that-rating","renderer":"primary","default":true,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null},{"id":"composition","label":"Age composition","description":"Show the same rating-age bands as an ordered 100% composition.","url":"https://londongraph.com/g/how-old-is-that-rating?view=composition","renderer":"composition-bars","default":false,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null},{"id":"borough-matrix","label":"Borough age profile","description":"Compare rating-age shares across boroughs using each borough's exact dated-rating denominator.","url":"https://londongraph.com/g/how-old-is-that-rating?view=borough-matrix","renderer":"matrix","default":false,"timeControl":"inherit","datasets":["hygiene-age-by-borough"],"transform":null,"controls":null,"metrics":[],"caveat":null}],"availability":"observations","note":"The release is complete for the measures represented on the graph page."}