The line graph compares the cost of monthly contract of four different cellular companie —DOMO, LEX, SIM TX, and ALPHA—in a European country over a 8-month period from january to september in 2012.
Overall, it is clear that the figures experienced some fluctuations over the period, while the ALPHA figure experienced a siginificant increase by the end of the period.
In January, the most expensive contract was in the DOMO companie, with 15 euro, before slightly increasing to approximately 18 euro in February. However, afterward, it slightly decreased to around 16 euro in May and afterward, surged to 25 euro in the July, before slightly decreased to just below 25 euro. Likewise, the cost of monthly contract of the LEX companie started at approximately 13 euro in January and afterward, decreased to 10 euro in February. After fluctuation period by the end of the period situated at approximately 14 euro.
In contrast the SIM TX companie began at just below 10 euro in January and February, and the surged to around 14 euro in June, before significantly decreased to approximately 7 euro in September. Menwhile, the ALPHA cost started at 5 euro in January, before dramatically increasing to around 8 euro in April. Afterwards, it significantly decreased to 5 euro in June and afterward, it surged to 25 euro by the enf of the period.