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

 CO₂ _ SYO7006 _ surface - flask _ NOAA _ ccgg

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-25	0002-7006-1001-01-02-3001 -2025-01-01-0002	The latest version
2024-08-30	0002-7006-1001-01-02-3001 -2024-08-01-0732#20	Included in Yearly Fixed Dataset 2024
2023-09-01	0002-7006-1001-01-02-3001 -2023-08-29-0912#19	Included in Yearly Fixed Dataset 2023
2022-08-16	0002-7006-1001-01-02-3001 -2022-08-02-1008#18	Included in Yearly Fixed Dataset 2022
2021-08-04	0002-7006-1001-01-02-3001 -2021-07-21-1340#17	Included in Yearly Fixed Dataset 2021
2020-08-13	0002-7006-1001-01-02-3001 -2020-07-31-0856#16	Included in Yearly Fixed Dataset 2020
2020-03-10	0002-7006-1001-01-02-3001 -2020-03-10-1419
2019-08-30	0002-7006-1001-01-02-3001 -2019-07-22-1105#15	Included in Yearly Fixed Dataset 2019
2018-09-25	0002-7006-1001-01-02-3001 -2018-08-06-0947#14	Included in Yearly Fixed Dataset 2018
2018-06-25	0002-7006-1001-01-02-3001 -2018-03-09-1519
2017-02-13	0002-7006-1001-01-02-3001 -2017-02-03-1358