光陽市占率變化2025 2026 YtoY增減25.1% 24.5% -0.627.0% 25.4% -1.628.1% 26.4% -1.726.8% 27.3% +0.527.8% 26.4% -1.426.9% 25.2% -1.724.6% 24.2% -0.425.3% 23.5% -1.825.1% 25.1% ±025.0%25.4%23.9%8月市佔23.5% 為近年來歷史新低2025 整年708,406三陽 313502 44.3%光陽 183197 25.9% -0.8%山葉 125928 17.8%=622627 87.89%2026年 1~9月累計銷量 (輛) 564,611三陽251,108 44.5%光陽143,035 25.3% -0.6山葉106,140 18.8% +1.0=500,283 88.6% +0.71~9月累計銷量 (輛)2025年 525,822三陽234,651 44.6%光陽138,003 26.2%山葉90,337 17.2%=462,991 88.1%2026年 564,611三陽251,108 44.5%光陽143,035 25.3% -0.9山葉106,140 18.8% +1.6=500,283 88.6% +0.5