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

 ¹⁴CO₂ _ BHD5012 _ surface - flask _ NIWA _ data1

Updated Date	Version † met : with meteorological data	Details
2024-12-24	0057-5012-6001-01-02-9999 -2025-01-01-0057	The latest version
2024-10-03	0057-5012-6001-01-02-9999 -2024-10-02-0805
2022-06-29	0057-5012-6001-01-02-9999 -2022-06-27-0441	Included in Yearly Fixed Dataset 2024
2020-12-18	0057-5012-6001-01-02-9999 -2020-12-02-2004	Included in Yearly Fixed Dataset 2021
2019-08-05	0057-5012-6001-01-02-9999 -2019-07-30-1137	Included in Yearly Fixed Dataset 2020
2018-05-25	0057-5012-6001-01-02-9999 -2017-04-03-0540	Included in Yearly Fixed Dataset 2018