The Cambridge Structural Database (CSD) is fast approaching 1 million structures and below you can see some statistics on this highly valuable collection of curated data. Based on the current rate of growth of the CSD, the millionth structure is predicted to be added by July 2019 and you can read more about the countdown and how we define a million structures in our Blog Post.
These statistics are generated weekly on all the curated published structures in the CSD using the CSD Python API, they do not include structures undergoing enhancements. A daily update on the Countdown to CSD 1 Million is shown on the front page of the website and this corresponds to all the published CSD data, including structures undergoing enhancement available through our online Access Structures service. Additional statistics produced as an annual snapshot of the CSD are available from the Documentation and Resources page.
The number 'CSD Structures' refers to the number of unique crystallographic data collections deposited at the CCDC. The number of CSD entries is a slightly larger value, as each CSD entry corresponds to a published reference to a dataset.