* Country: Driving laws, road infrastructure, and driving culture differ greatly worldwide, leading to varying accident rates.
* Age range considered "teenager": The definition of "teenager" (16-19, 15-19, etc.) impacts the statistics.
* Type of accident: Are we considering all accidents, only fatal accidents, or accidents resulting in injuries?
* Data collection methods: The accuracy of statistics depends on how thoroughly accidents are reported and recorded.
While precise global figures are unavailable, studies consistently show that teenagers have a disproportionately high rate of accidents compared to older drivers. This is often attributed to inexperience, risk-taking behavior, and immature judgment. You'd need to specify a region and the parameters mentioned above to find a more precise percentage. For example, you might find data on the percentage of accidents involving 16-19-year-old drivers in the United States for a specific year.