Before revision:  The dynamics is analysed by means of time series of selected topological indicators of the MSTs  . Our empirical results show the usefulness of the proposed approach to the analysis of systemic risk in the insurance sector.
After revision:  The dynamics is analysed by means of time series of selected topological indicators of the MSTs in the years 2005-2019 . Our empirical results show the usefulness of the proposed approach to the analysis of systemic risk in the insurance sector.