The bar chart below shows the tremendous growth in global Internet traffic measured in GB/s. Because of the exponential growth in values we use a logarithmic axis. In addition, the number of decimal places used also change to ensure we do not providing false precision.
This chart was made with Aploris on a Mac.
Bar chart with log axis examining global internet traffic between 1992 and 2019
The stacked bar chart below shows a forecast of the number of worldwide emails sent on a daily basis from 2014 and 2018. The segments in the stack show the break down of business versus consumer emails.
Forecast of worldwide business and consumer emails sent on a daily basis between 2014 and 2018
The data column to the right of the chart helps the reader understand that business emails, growing at 6% CAGR, is the primary driver of total email growth. This is likely due to consumer preference toward other forms of communication including social media and instant messaging. A data row below the chart is used to show the number of worldwide email users. The breakdown of business and consumer email users was not available.
The data row allows to show data that is related to the main data plotted in the chart area without the complexity of additional visuals and axis scales. With Aploris the numbers are part of the chart data and may be part of calculations. The values are automatically updated and aligned with the categories displayed in the chart.
The left bar chart below provides details on the share of webpages that are served to mobile phones from 2009 to 2014. The right stacked bar chart examines which mobile browser platforms were most commonly used in 2014.
Stacked bar charts examining share of webpages served to mobile phone and primary mobile platforms
Mobile share of web traffic is growing rapidly from just 0.7% in 2009 to 28.9% share in 2014. Note that the absolute increase of webpages being served is not considered in the chart as only percent values are displayed. Roughly 70% of websites viewed on mobile phones in 2014 were viewed on Apple Safari or Android Webkit. We set the height of the second stacked bar chart equal to the height on the 2014 column in the first bar chart. This helps the reader visually identify how the data is related.
The bar-mekko chart below efficiently shows Internet penetration in different geographies around the world. The height of each segment is the penetration percentage; the width is the size of the population. Therefore, the area of each segment allows the reader to quickly compare the number of active internet users in different geographies.
The bar-mekko is similar to the Marimekko or mekko chart except it has a variable height. It is also effective when used to compare profitability of value chains and business segments.
Bar-mekko chart examining global Internet penetration