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

 CO₂ _ DDR2019 _ surface - insitu _ SAIPF _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-16	0065-2019-1001-01-01-9999 -2025-01-01-0105† met	The latest version
2023-12-06	0065-2019-1001-01-01-9999 -2023-12-04-0222#20† met	Included in Yearly Fixed Dataset 2024
2022-07-01	0065-2019-1001-01-01-9999 -2022-06-27-0532#19† met	Included in Yearly Fixed Dataset 2023
2020-04-08	0065-2019-1001-01-01-9999 -2020-04-06-1527#17† met	Included in Yearly Fixed Dataset 2021
2020-04-06	0065-2019-1001-01-01-9999 -2020-04-01-1607† met
2020-02-27	0065-2019-1001-01-01-9999 -2019-10-21-1616† met
2018-07-18	0065-2019-1001-01-01-9999 -2018-05-25-1829#15	Included in Yearly Fixed Dataset 2019