New and redesigned model launches often demonstrate high initial quality, which may dispel the myth that quality always suffers during new-vehicle launches, according to the JD Power and Associates 2003 Initial Quality Study. An analysis of all replacement-model launches and major vehicle redesigns since 1998 shows an average decline of only 5 problems per 100 vehicles (PP100) in initial quality in the launch year, which is usually more than regained in the year after launch.