the search economy revenues :developed nations vs developing nations

The value of the search economy

1. The Indexed Web contains at least 4.72 billion pages (Monday, 29 June, 2015). grown by 44% annually during the preceding ten years. 
2. According to Mckinseyƒ Search represents 10 percent of the time spent by individuals on the Web, totaling about four hours each a month.29 ƒ
3. Approximately 25 percent of the traffic to the Websites of mainstream content creators results is referred by search engines.
4. The return on investment (ROI) for those that deploy search are high. Advertisers do well, earning an average ROI of 7:1
5. The value of search to retailers was estimated in 2009 at 2 percent of total annual retail revenue in developed countries and 1 percent in developing ones. That is equivalent to $57 billion to $67 billion in the United States and $2.1 billion to $2.4 billion in Brazil.10