Revisiting Grodzins Systematics of B(E2) values

Using Grodzin's formalism as modified by S. Raman {\it et al.}, {\sc Phys. Rev.} {\bf C 37}, (1988) 805 and D. Habs {\it et al.}, CERN Proposal INTC-P-156 (2002) we analyze systematics of our latest evaluated B(E2) data for all the even-even nuclei in Z=2-104 range published in At. Data Nucl. Data Tables 107 (2016). The analysis indicates a low predictive power of systematics for a large number of cases, and a strong correlation between B(E2) fit coefficients and nuclear shape, shell closing effects. These findings provide a strong rationale for introduction of individual or elemental (grouped by Z) fit parameters. The current systematics estimates of quadrupole collectivities in even-even nuclei yield complementary values for comparison with experimental results and theoretical calculations. The complete list of fit parameters will be presented and possible implications will be discussed.