<GetCategoryTrends>
   <Version>integer</Version>
   <RequesterCredentials>
      <Token>string</Token>
      <UserToken>string</UserToken>
      <DeveloperName>string</DeveloperName>
   </RequesterCredentials>
   <CategoryQuery>
      <Categories>
         <CategoryID>integer</CategoryID>
         ... more CategoryID nodes ...
      </Categories>
      <Dates>
         <StartDate>date</StartDate>
         <EndDate>date</EndDate>
         <DateRange>date range</DateRange>
      </Dates>
      <Breakdown>date range</Breakdown>
      <Scaling>string</Scaling>
      <TrendValues>
         <ReturnRevenue>boolean</ReturnRevenue>
         <ReturnListings>boolean</ReturnListings>
         <ReturnSuccessful>boolean</ReturnSuccessful>
         <ReturnBids>boolean</ReturnBids>
         <ReturnItemsSold>boolean</ReturnItemsSold>
         <ReturnItemsOffered>boolean</ReturnItemsOffered>
         <ReturnAverageSellers>boolean</ReturnAverageSellers>
         <ReturnHighestEndPrice>boolean</ReturnHighestEndPrice>
         <ReturnLowestEndPrice>boolean</ReturnLowestEndPrice>
         <ReturnAll>boolean</ReturnAll>
      </TrendValues>
   </CategoryQuery>
</GetCategoryTrends>