Fig. 4 shows that most of the 130 respondents were based on the American continent with a 46 per cent share, followed by the European continent with 43 per cent. Respondents from the continents of Africa, Asia and Oceania had a lower rate of participation in this study.
The classification of the study by countries is illustrated in Fig. 5, detailing the number of respondents by country. Most participants were from Spain (45 respondents), followed by Peru (34 respondents).