Fig. (2) Correspondence analysis between the most important criteria observed at the time of purchase: relationship with age and gender of the respondents. (a) Female gender and different ages (red) (b) Male gender and different ages (black). The age is represented by colors corresponding to the gender of the respondents (18 to 25 years; 26 to 35 years; 36 to 45 years; 46 to 55 years; more than 55 years)