* Result of a sample of 163 unique Healy users; it is not a scientifically validated survey.
* Result of a sample of 163 unique Healy users; it is not a scientifically validated survey.
* Cumulative result of a sample of 248 unique Healy users from three surveys; It is not a scientifically validated survey.
* Cumulative result of a sample of 249 unique Healy users in two surveys.