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

 CO₂ _ MKN1005 _ surface - insitu _ KMD _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-24	0040-1005-1001-01-01-9999 -2025-01-01-0040† met	The latest version
2024-05-13	0040-1005-1001-01-01-9999 -2024-05-06-1011#20† met	Included in Yearly Fixed Dataset 2024
2023-08-15	0040-1005-1001-01-01-9999 -2023-08-10-1309#19	Included in Yearly Fixed Dataset 2023
2023-07-06	0040-1005-1001-01-01-9999 -2023-07-05-1048
2022-07-08	0040-1005-1001-01-01-9999 -2022-07-07-0657#18	Included in Yearly Fixed Dataset 2022
2022-06-09	0040-1005-1001-01-01-9999 -2022-06-07-1304
2021-08-27	0040-1005-1001-01-01-9999 -2021-08-25-0728#17	Included in Yearly Fixed Dataset 2021