The line graph comparison the average cost of monthly contract of four phone companies in one European country between January and September in 2012 measured in euros
Overall, DOMO, LEX and Alpha companies both experienced an upward trend, while the opposite true for SIM TX. DOMO was the most popular whereas ALPHA remained as the least interested 6 months and at end of the period reached a most popular companies. However, SIM FX bucked the foregoing trend and stood as the third most interested companies.
Focusing on the average price in DOMO and ALPHA, they both recorded an increase. Starting with around 15 euros, DOMO increased dramatically untill it reached a peak of 25 euros in July. This was followed by ALPHA at the lowest around 5 euros initially, rose sharply to 25 euros although it remained as the most expensive average price
By contrast, SIM FX grews gradually from nearly 8 euros at the beggining of period but after June it witnessed a downward trend at approximately 6 euros in September. The average cost in LEX was the second most expensive at about 13 euros, all period it experienced an upward trend and at the end of period it reached a peak at 15 euros and was the third most expensive average prices.