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

 CO _ PDM6044 _ surface - insitu _ LA _ data1

Updated Date	Version † met : with meteorological data	Details
2024-12-24	0043-6044-3001-01-01-9999 -2025-01-01-0043	The latest version
2018-09-13	0043-6044-3001-01-01-9999 -2018-09-13-1928	Included in Yearly Fixed Dataset 2024
2018-06-14	0043-6044-3001-01-01-9999 -2018-03-08-0803