My overall 1-UV-ticket stats for punch
Out of 268 1-UV-ticket rolls
7 very high/maximum ~2.6%
11 high ~4,1%
64 medium ~24%
186 low ~69,7%
Worst series: 16 times low
I consider 2 ouf of the 7 very high/max rolls good, which gives me a 0.75% chance to get what i want.
That is 2,670,000 crowns per very high/max item. ~30kce
When breaking it down to swords it drops down to ~100 rolls and for the others it is even less. Need more data to be significant.
Swords Out of 140 1-UV-ticket rolls
14 ctr
21 asi
18 demon
21 gremlin
15 jelly
14 construct
16 beast
20 undead
19 demon

Thanks for following up. As you suggested, the fractions don't seem to vary much from 1/8. (I haven't tested significance. The sample sizes are small.)

Someone data mined this the other day so we actually have the exact values. In other words I could just tell you.
But that.
Would be cheating.

In the original post, there's a small error: 186 + 64 + 11 + 7 = 268, not 267. Am I right that you have 268 trials, or is the error elsewhere?
i corrected it, its 268. parsing mistake with the last line
Thanks for telling us about your data. Various people have collected such data over the years, but it's always good to have more. How hard would it be for you to further break it down by item type: swords, handguns, bombs, helmets, suits, shields? Do you have that information recorded?
At this wiki page...
https://wiki.spiralknights.com/User:Jdavis/UVs
...I use data and basic probability theory to estimate the cost of obtaining UVs from Punch. Depending on exactly what your 2,670,000 figure represents, it might be very close to my predictions (or not).