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

 CO₂ _ KMW6015 _ surface - insitu _ RIVM _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-24	0063-6015-1001-01-01-9999 -2025-01-01-0103	The latest version
2018-07-20	0063-6015-1001-01-01-9999 -2018-07-09-1357	Included in Yearly Fixed Dataset 2024