Counterfeit perfume

Hi. How big is the problem with counterfeit perfume in the world actually? 

Counterfeit perfume can pose serious risks to consumers' health and safety, as fake fragrances may contain harmful ingredients, such as high levels of methanol, which can cause skin irritation, allergies, and even blindness. In addition to the health risks, counterfeit perfume can also be of poor quality, with a weak scent and a short lifespan, which can lead to consumer dissatisfaction and disappointment.