ITU Key ICT indicators for developed and developing countries and the world (totals and penetration rates). From 2005 to 2017 featuring end-2017 estimates.
NOTES:
1. The data was originally in messy Excel tables and has been manually reshaped to long format, which may have introduced some errors.
2. This data has changed significantly between the 2016 and 2017 editions, including historical data as far back as 2005, but no explanation for this has been given and the data is not marked as changed.
3. The figures in the source data are 8 decimal places but have been rounded to 3 decimal places here.
4. The data for Least Developed Countries (LDCs) was first added in 2017, with full history going back to 2005.