ICSD now contains 307,301 crystal structures

The ICSD database now contains 307,301 crystal structures.

During the update procedure, 8,283 new entries were added, 1,257 entries were modified and 27 entries were removed. The work on structure types has been expanded to the newly added and modified data. About 208,000 ICSD entries have now been assigned to 10,666 distinct structure types.