Electric Scooter Market Size, Share & Trends Analysis Report by Product (Retro, Standing/Self-Balancing, Folding), by Battery (Sealed Lead Acid, NiMH, Li-Ion), by Voltage (24V, 36V, 48V, Greater than 48V), by Region (North America, Europe, Asia Pacific, Latin America, Middle East & Africa) - Global Industry Assessment (2016 - 2021) & Forecast (2022 - 2028)