ITU World Telecommunication/ICT Indicators database

The World Telecommunication/ICT Indicators Database contains time series data for the years 1960, 1965, 1970 and annually from 1975 to 2020 for more than 180 telecommunication/ICT statistics covering fixed-telephone networks, mobile-cellular telephone subscriptions, quality of service, Internet (including fixed- and mobile-broadband subscription data), traffic, staff, prices, revenue, investment and statistics on ICT access and use by households and individuals. Selected demographic, macroeconomic and broadcasting statistics are also included. Data are available for over 200 economies. However, it should be noted that since ITU relies primarily on official economy data, availability of data for the different indicators and years varies. Notes explaining data exceptions are also included. The data are collected from an annual questionnaire sent to official economy contacts, usually the regulatory authority or the ministry in charge of telecommunication and ICT. Additional data are obtained from reports provided by telecommunication ministries, regulators and operators and from ITU staff reports. In some cases, estimates are made by ITU staff; these are noted in the database.世界电信/信息通信技术（ICT）指标数据库收录了1960年、1965年、1970年以及1975年至2020年的年度时间序列数据，涵盖180余项电信与ICT统计指标，涉及固定电话网络、移动蜂窝电话订阅用户数、服务质量、互联网（含固定及移动宽带订阅数据）、业务流量、从业人员、资费、营收、投资，以及家庭与个人的ICT接入与使用情况统计等维度。此外还收录了部分人口统计、宏观经济及广播相关统计指标。该数据库覆盖超过200个经济体。但需说明的是，由于国际电信联盟（ITU）主要依赖各经济体官方报送的数据，不同指标及对应年份的数据可获得性存在差异。数据库中还附带了针对数据例外情况的详细注释。数据主要通过向各经济体官方联络单位（通常为电信与ICT监管机构或主管部门）发送年度问卷的方式采集，其余补充数据则来源于电信主管部门、监管机构及运营商提交的专项报告，以及ITU工作人员的相关报告。部分场景下，ITU工作人员会对缺失数据进行估算，此类情况均会在数据库中明确标注。