Energy spectrum is calculated for several values of the classicality parameter κ=hbar/K (K is the mass parameter) and in three different quantization schemes: 5D (original geometric collective model, only 0+ states), E (quantum version of the classical nonrotating GCM, only even states, obeying additionally the point symmetry with respect to the rotation about the angle 2π/3), and O (the same as E, but odd states). The quantum regularity is measured with the adjunct 1-ω of the Brody parameter. The thick violet line corresponds to the classical measure of regularity freg(E). | Parameters of the calculation: Basis size: approximately 54,000 states Well-converging states: 30,000 Number of energies used for evaluating one point in the graph: 1 000 Unfolding for each subset of energies: Polynomial of degree 3 |