[OC] Spaniens Demographie

I got the data from the National Institute of Statistics of Spain and I made these charts because I was bored, I used Google sheets and scripts to process the data and make the charts and then I used DaVinci Resolve to make the gif

There’s one 1y cohort born around 1940 that stands out, with the cohort one year older being much smaller. Was there a break in the war for Spain?