"Starting Points"

Absolutely! And what isn't analysed in these figures are the "catchall" categories used in the Pilgrims' Office - Rest of Europe (i.e. not usual starting points such as Le Puy) and Rest of Espana (i.e. starting points other than the usual such as Roncesvalles etc)

There are traditional starting places for many camino routes in France and Spain. Le Puy, Arles, Vezelay, Somport, Oviedo, Leon, Bayonne, el Ferrol etc etc etc.
It seems that is mainly the camino Frances that elicites strong opinions and discussions on whether or not the route has a starting point! It comes back to that old onion - "The Camino"refers to more than just the Camino Frances.
Unlike medieval pilgrims, who had no option but to start from their front door, very few pilgrims today are able to start from home. In order not to confuse wanna-be pilgrims I always tell them that the Camino Frances starts either at St Jean or at Roncesvalles and that the 'whole route' is either 774km or 750km long.
In 1912, Catherine Gasquoine wrote about English pilgrims in her book 'The Story of Santiago de Compostela'.
"Today the path of the pilgrim is far different. He will journey from England to Vigo in one of the fine vessels of the excellent Booth Line, and will enjoy three days of most comfortable travelling. He will journey by train to the old seaport of Pontevedra ... where the West Galician Railway carries pilgrims to Santiago."