However, although the latter varies significantly from cycle to cycle (
as reflected in different cycle magnitudes varying by a factor of 2), the tilt angle exhibits roughly the same
variations over all cycles, in accord with the idea of a regular
cyclic behaviour (Suess et al. 1993; Cliver & Ling 2001; Alanko - Huotari et al. 2007), depending only on the solar cycle phase and not on its strength.