Since 2002 PTS has conducted a survey, formerly called the Swedes’ use of telephony and Internet - PTS individual survey but since 2019 it is known as The use of internet and telephony in Sweden 2019.
The most recent one were conducted 2019.
In the report (summary in English) you will find answers to questions regarding:
• Usage of services
• Operator switching
•Issues with services
• Attitudes to services and operators
• Subscription forms