{"code":0,"data":{"collectionMetadata":{"collectionId":"446","createdAt":"2019-01-14T16:00:30+08:00","name":"Principals’ Length of Service and Age by Level","description":"Length of Service is calculated based on officers' latest employment episode (i.e. officers who are re-appointed/re-employed, their length of service is zeroised and calculated based on the date of their re-appointment/re-employment). ","lastUpdatedAt":"2025-11-10T15:33:50+08:00","coverageStart":"1996-01-01T08:00:00+08:00","coverageEnd":"2021-12-31T08:00:00+08:00","frequency":"annual","sources":["Ministry of Education"],"managedBy":"Ministry of Education","childDatasets":["d_c1295bd1935f06ac0646a10efbf07dbf","d_210a22c0afa1bb429c430de8bbcb5b9f"]}},"errorMsg":""}