The previous months were primarily going to US customers (partly due to an ongoing pandemic). Notice how deliveries to Europe will spike in follow-on months as ships arrive.
Tesla tends to have very vocal fans and haters. Each month there is a different article highlighting how Tesla is in dire straights due to the precipitous fall in sales in X country. The next month an article will say how Tesla crushes competitors in X market.
Source: https://docs.google.com/spreadsheets/d/10Uh_GSkShwPPlrE5mOJc...
https://electrek.co/2019/09/18/tesla-model-3-best-selling-ca...
"With another wave of deliveries in the Netherlands, Tesla Model 3 has become the best-selling car in the country for the year as it now surpasses 10,000 units.
Since the European launch of the Model 3 earlier this year, the vehicle clearly reinvigorated Tesla’s sales on the continent."