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

 CH₄ _ LAU5014 _ surface - insitu _ NIWA _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-24	0057-5014-1002-01-01-9999 -2025-01-01-0057† met	The latest version
2023-12-04	0057-5014-1002-01-01-9999 -2023-12-04-1359#20† met	Included in Yearly Fixed Dataset 2024
2021-07-09	0057-5014-1002-01-01-9999 -2021-06-30-0358#19† met	Included in Yearly Fixed Dataset 2023
2020-02-25	0057-5014-1002-01-01-9999 -2019-10-16-1145† met	Included in Yearly Fixed Dataset 2020
2018-07-18	0057-5014-1002-01-01-9999 -2018-07-17-1223	Included in Yearly Fixed Dataset 2019
2018-05-27	0057-5014-1002-01-01-9999 -2018-01-29-0729