The line graph illustrates global sales of top five mobile phone brands such as Samsung, Apple, Nokia, LG and ZTE between 2009 and 2013.
Overall, the units sold of mobile phone brand Samsung gradually increased while the sales of Nokia significantly decreased. However, the figure of LG and ZTE remained more or less stable whereas the number of products sold in Apple gradually rose.
Samsung accounted for 450 million sales in 2013, making the largest quantity sold at that time. Furthermore, Samsung climbed from 250 million sales. In contrast, population of Nokia considerably changes, there was a dramatically decreased, from 440 million to 235 million in the interim 2009, 2011 and 2013. In addition, the figure remained relatively unchanged during the period from 2005 and 2011.
Even though LG sales slightly declined from 120 millions to 60 million in 2013, meanwhile ZTE sold remained stable all of the years it increased minor 3 million. Nevertheless the volume of sales in brand Apple rose by 130 million sold from 2009 to 2013, in 2009 sales was substantially small but to 2011 it rose dramatically by 60 million sales
