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

 CO₂ _ DMV5005 _ surface - insitu _ MMD _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-24	0047-5005-1001-01-01-9999 -2025-01-01-0047† met	The latest version
2020-06-16	0047-5005-1001-01-01-9999 -2020-01-14-1053† met	Included in Yearly Fixed Dataset 2024
2018-06-19	0047-5005-1001-01-01-9999 -2018-03-07-1613	Included in Yearly Fixed Dataset 2019