See the data version history.
The data of old versions are available only if the versions are included in Yearly fixed datasets.

 CFC-11 _ MHD6016 _ surface - insitu _ AGAGE _ gc-ms-medusa

Updated Date	Version † met : with meteorological data	Details
2026-09-01	0004-6016-1303-01-01-2023 -2026-08-10-0006	The latest version
2025-08-18	0004-6016-1303-01-01-2023 -2025-08-12-1504	Included in Yearly Fixed Dataset 2025