Sorry I'm not too familiar with civil service bonus, can someone help out?

So does that mean this year there is 1 mth AWS + 1.8 mth AVC + 3mth PB (assume average B- performer)? So in total civil service is paying out 5.8 mth bonus for normal performerer?

This is really fantastic if true, makes me want to try my luck applying for a public sector job next year also.