At last someone else got the figure right. I've been saying nearer 100,000 every year since I looked at the figures back in 2015 for my presentation at the PAES conference.
Let's look at the figures.
Estimated ANNUAL figures for uncontrolled breeding of galgos.
Back in the early 1990’s, a friend of mine who was a Daily Mail staff photographer, was visiting the Castila-la Mancha province. His guide walked him into an olive grove where he photographed the olive trees, many of which had a dead galgo hanging from them, which made headlines in the paper.
In 2009 SOS Galgos (Barcelona) claimed on their website that 160 galgos were abandoned every day.