Russia is a European country.
Not really. Only 25% of Russia (Western Russia) lie within European borders.
The rest is part of Asia (hence the general term Eurasia).
Lastly, when people talk about European countries they're usually referring to those with close cultural and economic ties to each other. i. e. EU member states.
Of course the numbers exist, but whilst the X1000 was made with the remaining few Amiga enthusiasts in mind, none can be trusted with specific sales figures.
Between 300 and a 1000? So it could equally be 333 or 999, the latter being three times the former. It's as ridiculous as saying 300 (+/- 233%)
And if you are a developer what could you possibly do with such a vague sales report? Is my target audience 300 users or 1000? What possible advantage is there in not sharing these numbers, I don't know. Yes, releasing them would make A-Eon a target of some criticism but surely they would be used to that by now. They should focus on the positives; There's enough flag wavers out there. Well, somewhere between 300 and 1000 of them.
Does it really matter? Neither 300 nor 1000 would be considerably profitable for any software dev. People are mainly doing it for the love of the platform.