Key points are not available for this paper at this time.
Crystal Data Space-Group Tables lists over 17,000 materials whose space groups and symmetry have been determined mainly by x-ray diffraction. These tables comprise a companion publication to Crystal Data Determinative Tables. The space groups are listed in the same order and orientation as in International Tables for x-ray Crystallography. Within each space group, the materials are arranged in increasing order of the ratios of the cell parameters. The space-group tables enable the user to find crystals of any specified symmetry, to locate isostructural molecules, and to compare the population frequencies of the various space groups.
Mighell et al. (Fri,) studied this question.