The bar chart demonstrates the number of Apple products, which were iPhone, iPad, and Mac, sales between 2010 and 2014.
Overall, it is evident that the sales of iPhone had the largest portion out of the three categories throughout the period while Mac sales had the smallest share. Additionally, the number of sales has shown some fluctuations for all groups during the whole period.
From the data provided in the bar graph, the iPhone was the most popular product among three products, and the sales number has always above the 16.2 million and peaked 74.5 million in December 2014. This was the highest sales for all gruops and years.
The second favored goods was iPad, and it reached its own the largest portion in December 2013 with 26 million, after this month this product witnessed a dramatic decline and reached to 12.3 million in September 2014. However, it increased sharply to 21.4 million again in December 2014. In contrast to those two groups, the sales of Mac has shown a little fluctuations (between 3.8 million and 5.5 million)during the period. In March 2011, it had own the smallest number (3.8 million), and this year iPad also had its own the least sales. By the way, Mac has never sale more than 5.5 million overall the whole period.