Key ICT indicators for developed and developing countries and the world (totals and penetration rates)
数据比对了发达国家、发展中国家、世界范围的关键信息技术指标
时间跨度为2005-2017
包括：固定电话、手机、因特网、宽带、电脑等使用情况对比
数据来源：ITU World Telecommunication/ICT Indicators database.
The World Telecommunication/ICT Indicators Database on USB key and online 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.
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