In total, statistical analysis of the temporal evolution of high-speed camera imaging can provide insightful information on the fundamental properties of plasmas formed at electrodes in a solution. The applicability of our statistical analysis is possibly not limited to wire electrodes, but we expect it to be easily adaptable to other electrodes or plasma processes, such as plasma electrolytic oxidation (PEO). Furthermore, we are confident that in combination with other characterization techniques the fundamental understanding of local processes related to electrode surface modification, such as nanoparticle formation, in the individual discharges, and to the discharge electrolyte interface during CGDE, becomes available.