I follow a local emergency responder online (Chanthaburi province), she updates with any road accidents attended each shift; I don't have any statistics and I won't guess one either, but in so many of the motorcycle injury and fatality events, no other vehicle is involved.
There'll be a photo of a crashed motorcycle, a pixellated body some metres away. Often the 'other party' is a corner, a tree, a ditch or a pond/river.
Everyone's a racer, until they're not.
Friday 4th there was one near us, boy of 16 cut unsuccessfully in front of a truck/trailer, his Scoopy was wedged and dragged along under the front of the truck, his body several sets of wheels back.
What a job. And two Fridays before she attended to two motorcycle fatalities in a single shift.
Gets home: "How was your day at work today?"