The line graph presents the monthly earnings data in four jewelry shops within one company throughout the 12-month period in 2008.
Overall, revenue rates in all shops increased, generally rising towards the year end. While Shop 3 was leading, Shop 4 demonstrated the lowest figures. It is also evident that the most significant rise was in Shops 1 and 2, whereas all shops had quite comparable revenues in April and May.
Despite starting the period at over 70,000 euros, Shop 3 saw a downward trend to its minimum of 40,000 between April and June. However, in the second half of the year, this Shop had an ongoing surge to its peaking value of 80,000 eventually, overall highest. Shop 2 had a similar trend, although between January and May its revenue was quite stable (32,000). From May onwards, it started growing and had almost doubled by December to reach nearly 60,000.
Turning to the other two jewelry outlets, Shop 1 had the lowest revenue initially (15,000). However, it began soaring and exceeded the point of 40,000 euros in April, overtaking Shop 2 and equalizing with the leading Shop 3. This figure remained unchanged until October and rose only marginally to about 50,000 in December. As for Shop 4, its income was fluctuating over the period between 17,000 and 30,000 euros, showing the lowest result overall.