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

 CO₂ _ CMN6042 _ surface - insitu _ IAFMS _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-24	0029-6042-1001-01-01-9999 -2025-01-01-0029† met	The latest version
2024-07-24	0029-6042-1001-01-01-9999 -2024-07-16-1452#20† met	Included in Yearly Fixed Dataset 2024
2024-02-02	0029-6042-1001-01-01-9999 -2024-01-31-1720† met
2023-03-13	0029-6042-1001-01-01-9999 -2023-03-09-1252#19† met	Included in Yearly Fixed Dataset 2023
2022-05-10	0029-6042-1001-01-01-9999 -2022-05-04-1246#18† met	Included in Yearly Fixed Dataset 2022
2022-01-31	0029-6042-1001-01-01-9999 -2022-01-26-1338† met
2021-11-01	0029-6042-1001-01-01-9999 -2021-10-28-1420† met
2021-06-23	0029-6042-1001-01-01-9999 -2021-06-22-1150#17† met	Included in Yearly Fixed Dataset 2021
2021-03-31	0029-6042-1001-01-01-9999 -2021-03-30-0552† met
2021-01-15	0029-6042-1001-01-01-9999 -2021-01-08-1011† met
2020-07-21	0029-6042-1001-01-01-9999 -2020-07-15-2203#16† met	Included in Yearly Fixed Dataset 2020
2020-02-28	0029-6042-1001-01-01-9999 -2020-02-26-1757† met
2020-02-26	0029-6042-1001-01-01-9999 -2019-10-21-1739† met
2019-05-15	0029-6042-1001-01-01-9999 -2019-04-29-1605#15	Included in Yearly Fixed Dataset 2019
2018-06-08	0029-6042-1001-01-01-9999 -2018-02-08-1512#14	Included in Yearly Fixed Dataset 2018