Here are the road crashes by percentage for various age groups. Without my addition one could be excused for thinking the performance of young people had improved, whilst that of older had worsened. But then I have overlaid the share of total population for each age group. The lines are clearly related. Bear in mind that these are against a backdrop of a halved road toll since the late 1980s. The road toll peaked in 1987 at 795 deaths. (I know, road deaths are not the same as road crashes but I have run out of searching energy for now.)
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