The data compares the outputs for different jewelry shops in 2008 measured in thousands of euros.
Overall, the incomes for every jewelry companies experienced a growth. However, although shop 3 recorded the highest numbers at the beginning and end, it was surpassed by shop 1 from May to June.
Regarding categories with highest outputs, it is clear that the income for shop 3 was 70,000 euros at the beginning, which made it dominant. Initially, its figure showed an accelerating decline to 40,000 euros in April, where it was surpassed by shop 1. Afterwards, shop 3 exhibited an upward trend to approximately 60,000 euros in September, before reaching peak at 80,000 euros in December. On the other hand, the output for shop 2 remained relatively stable at roughly 33,000 euros from January to May, before showing a gradual rise to around 52,000 euros in December.
Concerning the remaining categories, the revenue for shop 1 experienced a significant increase to 40,000 euros in April, and stayed constant over 5 months, before rising to roughly 47,000 euros at the end. In contrast, the revenue for shop 4 fluctuated throughout the period, reaching its minimum at just under 18,000 euros in January, and maximum at just over 30,000 euros in July. At the end, it was only 30,000 euros, which made it the least efficient jewelry company.
