Global Menstrual Cup Market Assessment, By Material Type [Silicone, Thermoplastic Elastomer, Others], By Cup Shape [Bell-Shaped Cups, V-Shaped Cups, Round-Shaped Cups, Ergonomic Shaped Cups], By Size [Small, Medium, Large], By Price [Below USD 50, USD 50- USD 100, USD 100- USD 200, Above USD 200], By Distribution Channel [Offline, Online], By Region, Opportunities and Forecast, 2017-2031F