求翻译！！！！

cgzjessieli

What conclusion can be drawn, for example, from Allen's discovery that Puritan clergy who had come to the colonies from East Anglia were one-third to one-half as likely to return to England by 1660 as were Puritan ministers from western and northern England？没看懂这句话！！急死我了~~~希望有NN给翻译一下~~~谢啦！！