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

 CO₂ _ HUA3002 _ surface - insitu _ IGP _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-24	0030-3002-1001-01-01-9999 -2025-01-01-0030	The latest version
2018-06-13	0030-3002-1001-01-01-9999 -2018-02-26-0854	Included in Yearly Fixed Dataset 2024