Cat 7 HEUI pump failure incidence rate

Not exactly a car engine, but I am wondering if anyone has seen any statistics or guidance on Cat 7 HEUI pump failures?

The pump compresses engine oil which is then delivered to the diesel injectors to power them for injecting and atomizing the fuel. When the pump fails it tends to take out the injectors with metal particulates.

The engine and HEUI pump have been out a while (20 years) and tend to be seen in older units, like school buses, delivery trucks, RVs, boats and other applications.

General advice for avoiding HEUI pump problems includes more frequent oil and filter

changes. I am looking for statistics or published material on the frequency, avoidance and other preventative measures.