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

 N₂O _ NGY2021 _ surface - insitu _ NAGOU _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-24	0049-2021-1003-01-01-9999 -2025-01-01-0049	The latest version
2018-07-20	0049-2021-1003-01-01-9999 -2018-07-13-0857	Included in Yearly Fixed Dataset 2024