遥遥望沙飞
同比： year basis 或者 on year-on-year basis环比：link relative ratio 或者 chain relative ratio
maggie13050
Year-on-year growth rates are rates of change expressed over the corresponding period (month or quarter in relation to the frequency of the data) of the previous year.Annual growth rate is calculated by taking the nth root of the total percentage growth rate, where n is the number of years in the period being considered.
