cyclicality

So, it is said that whatever is in fashion once comes back someday or the other. We have collected data on 10 different garment types, each having 5 different sub-types on what was in fashion in 50 years. (Eg- Jeans->Waist->High/Low/Mid-rise) We plan on assigning each sub-type a grade/number...

Hi I have a set of data - quarterly figures of a company's financial statements - and I would like to see whether the figures are cyclical e.g. 4th quarter always the highest. Which statistical test should I apply and whether such a function is available in Excel? thanks