In table 3, we shed light on the changes over time by examining the average test score gains of the three types of schools in two periods: the early period of charter schools (1999–2005) and the more recent period (2006–2012). The larger number of new charters entering the market in the early period relative to the later period reflects the rush to open charter schools in the early years before the cap was binding. In later years, as the state's charter school cap was approached, entry of new charter schools into the charter school market became less common.¹⁹