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

 CO₂ _ PUY6040 _ surface - insitu _ LSCE _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-24	0045-6040-1001-01-01-9999 -2025-01-01-0045	The latest version
2018-09-17	0045-6040-1001-01-01-9999 -2018-09-17-1432#20	Included in Yearly Fixed Dataset 2024
2018-06-18	0045-6040-1001-01-01-9999 -2018-03-08-1203