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

 CO₂ _ CGO5011 _ surface - insitu _ CSIRO _ data2

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-18	0016-5011-1001-01-01-9998 -2025-01-01-0016	The latest version
2023-07-20	0016-5011-1001-01-01-9998 -2023-07-19-1827	Included in Yearly Fixed Dataset 2024
2022-08-19	0016-5011-1001-01-01-9998 -2022-08-19-1704	Included in Yearly Fixed Dataset 2022
2021-04-09	0016-5011-1001-01-01-9998 -2021-04-08-1004	Included in Yearly Fixed Dataset 2021
2019-07-31	0016-5011-1001-01-01-9998 -2019-07-30-1847	Included in Yearly Fixed Dataset 2020
2018-10-18	0016-5011-1001-01-01-9998 -2018-10-15-1135#14	Included in Yearly Fixed Dataset 2018