I take your point, however there are always outliers. The specific Barnevelder I described laid 3-4 eggs a week in Summer, Autumn and Spring. None in Winter. She's in retirement now.They started to develop the Barnevelder around 1850-1875 and ‘improved’ the laying capacity over the years. Broodiness and laying throughout the year are not a good combination and somehow they managed to breed chickens that stopped being broody.
The Barnevelder breed as we know nowadays and all other breeds that lay over 200 eggs a year are developed after 1900. As far as I know all the high production breeds are not the best broodies.