One order of magnitude would be €350; two orders of magnitude would be €35; three orders of magnitude would be €3.50 I sincerely doubt that you spend €3.50–35/year on clothing!
For people who buy clothing frequently, this might be unimaginable, but I assure you that there are people who are happy with the clothing they own and do not buy more except to replace things that wear out or develop holes. And I do this by choice!
This is mostly my style. Actually, I can keep using things well after they develop holes. The shirt I'm wearing right now has four different holes developing around one of the wrist cuffs. I'd believe $60 / year for replacement-level clothing. $3.50 / year isn't enough to replace things that develop holes.
Unless you're in Bangladesh or something.
> For people who buy clothing frequently, this might be unimaginable
I too have not bought any clothes in the last 3 or 4 years. I have no need to. My current clothes fit me perfectly fine and my shoes are not in a bad state.
Though 35€/year maybe is achievable, especially if you get/wear shirts, hoodies, maybe even shoes from conferences or company events.
You probably at least still need a decent pair of shoes, one set of nice clothes, a jacket, pants, and underwear. 350€ to get that stuff for ten years still sounds very tight but maybe possible.
Not impossible, I'm sure I've done it in some of my broke Eastern European years, but most people probably spend more than that on socks and underpants.
Similarly, I didn't pay for any hodie that I wear (except one I use for hiking), and I'm building a gifted/given socks collection. Now I just need to convince some conferences to start giving out pants and shoes...
But, fair enough. The sub-$10 number might still be my median, but my mean is for sure higher.