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

 CO₂ _ BHD5012 _ surface - insitu _ NIWA _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-24	0057-5012-1001-01-01-9999 -2025-01-01-0057† met	The latest version
2024-07-01	0057-5012-1001-01-01-9999 -2024-06-26-2112#20† met	Included in Yearly Fixed Dataset 2024
2023-06-27	0057-5012-1001-01-01-9999 -2023-06-26-0052#19† met	Included in Yearly Fixed Dataset 2023
2022-06-28	0057-5012-1001-01-01-9999 -2022-06-23-0049#18† met	Included in Yearly Fixed Dataset 2022
2021-07-02	0057-5012-1001-01-01-9999 -2021-06-29-0402#17† met	Included in Yearly Fixed Dataset 2021
2020-07-13	0057-5012-1001-01-01-9999 -2020-07-01-0903#16† met	Included in Yearly Fixed Dataset 2020
2020-02-25	0057-5012-1001-01-01-9999 -2019-10-16-1145† met
2019-07-10	0057-5012-1001-01-01-9999 -2019-07-01-1046#15	Included in Yearly Fixed Dataset 2019
2018-07-13	0057-5012-1001-01-01-9999 -2018-07-02-1337#14	Included in Yearly Fixed Dataset 2018
2018-07-03	0057-5012-1001-01-01-9999 -2018-01-26-1018