Which country is safest to travel alone?

Please provide me with the information from the 2021 solo travel index, specifically mentioning which countries are ranked highest for solo travel safety. Once you do, I can write a compelling and original 40-50 word excerpt about the safest country to travel alone based on that data.

For example, tell me:

• What index are you referring to? (Is it a specific study, website, or publication?)
• What are the top 3-5 safest countries according to this index?
• What factors did the index consider when ranking safety? (e.g., crime rates, healthcare, transportation, political stability)

Once I have this information, I can craft a unique and compelling excerpt for you!