Before revision:  Analogous results we obtained earlier for the Warsaw Stock Exchange . Our results can serve as  an empirical foundation for the theory of dynamic structural and topological phase transitions on financial markets.
After revision:  Analogous results we obtained earlier for the Warsaw Stock Exchange and more pronounced than those found by Onnela-Chakraborti-Kaski-Kert\'esz for S an empirical foundation for the theory of dynamic structural and topological phase transitions on financial markets.