Problem
Now we will examine the cycles more closely. Define "peak" by a year when the cyclical component is higher than in the two preceding and following years. Define "cycle" as the time between two peaks. How many cycles do you observe? What is the average length of the cycle? How long do the shortest and the longest cycles last? Do the cycles look similar in terms of severity (amplitude), duration, and general shape? (Document your work, providing spreadsheet formulas, etc.)
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.