Global Data Center Colocation Market Assessment, By Type [Retail Colocation, Wholesale Colocation], By Tier Level [Tier 1, Tier 2, Tier 3, Tier 4], By Enterprise Size [Small and Medium Enterprise, Large Enterprises], By End-user Industry [Banking, Financial Services, and Insurance, Energy and Utilities, Healthcare, IT and Telecom, Retail, Manufacturing, Others], By Region, Opportunities and Forecast, 2018-2032F