Deaths and Great War Deaths

From time to time it's worth looking at figures like this
referenced in a post "UK drops in European child mortality rankings" by the UK Office of National Statistics. Obvious for births are the post war baby booms and baby boom echo of the early 1960s. Peaks in deaths at the end of WW1 during the influenza pandemic and associated with WW2 bombing are evident.
The deaths are those registered in England and Wales and don't attempt to account for those who died overseas. A rough calculation using British Forces deaths in WW1 from the Commonwealth War Graves Commission, allowing roughly for those who died in Britain and subtracting those from Scotland and Ireland, indicates another 25% can be added for the overseas deaths of those from England and Wales.