An 95% clearance rate with 100 crimes leaves the same number of unresolved cases as a 0% clearance rate with 5 crimes. If you have fewer crimes you don't have to spend as much money prosecuting them to get the same results.
As long it’s more than single digit cases per year per city not getting cleared, it seems practically irrelevant to car theft recovery what the number is beyond that. Since police forces have finite staffing and budgets.
Anyone proposing extra resources to be spent or diverted to car thefts would not be taken seriously, if it’s clearly insufficient to even clear most violent cases.
