<[{" Quarter":"4Q19"," GOS margin":2.67},{" Quarter":"1Q20"," GOS margin":3.15},{" Quarter":"2Q20"," GOS margin":5.47},{" Quarter":"3Q20"," GOS margin":4.92},{" Quarter":"4Q20"," GOS margin":4.8},{" Quarter":"1Q21"," GOS margin":5.12},{" Quarter":"2Q21"," GOS margin":4.03},{" Quarter":"3Q21"," GOS margin":3.78},{" Quarter":"4Q21"," GOS margin":3.94},{" Quarter":"1Q22"," GOS margin":2.73},{" Quarter":"2Q22"," GOS margin":2.84}]>