Fig. 4: Number of structures as a function of space group number.

For reference, the lattice type for a given interval of SG numbers is as follows: [1,2] triclinic, [3,15] monoclinic, [16,74] orthorhombic, [75,142] tetragonal, [143,167] trigonal, [168,194] hexagonal, and [195,230] cubic.