Maori Casualties New Zealand Wars to Vietnam

 Just a quick read.

In the 1860's the New Zealand Wars took place.  Māori casualties were 2,254.

In the First World War Māori lost 336 lives.

In the Second World War the 28th Māori Battalion lost 649 lives

In the 1950's Korean War Māori lost 45 lives.

In the 60's/70's Vietnam War Māori lost 37 lives.  

Spot the discrepancy.