The line chart compared four different mobiles (cell phones) in terms of the cost per month in European countries within first six-month in 2002.
Overall, it is clear that all of the objects recorded experienced a big fluctuation. Additionally, the money allocated to Sim TX started at the bottom, through the oscillation, emerged as a popular choice.
Looking at the line graphs in more detail, it was seen that the money spent on Domo stood at 15% in January, the highest proportion compared to the others. Then, through a fluctuation between 2 and 10 in next six months, it reached the highest point of 22% in September. Conversely, the average monthly costs of Alpha, from 8% in January, ascended temporarily to the highest point of slightly under 15% in June. However, in following months, it shrank consistently before hitting a low of 8% in September.
Lex began the surveyed at 13% in January. This data decreased by 3% in the next month and had an upward trend until finishing the survey of 17%. Especially, Sim TX commenced at the lowest point of 5% in January. Then, over the next six months, it stood at 5%- the same data as the beginning. But, from that, Sim TX emerged as a popular choice for European citizens. The figure for that shoot up considerably before reaching five times its initial value in September.