Here are the attributes for the UP issues and what they do. I am hoping someone can help with the ones I list as UNKNOWN.
0: UNKNOWN
1: Do we want to add trade routes?
2: Do we disallow exploring anomalies in someone else's territory?
3: Do we want taxes on warmongers?
4: Do we want taxes for planets in someone else's territory?
5: Do we add weapons to colony/troop transports?
6: There is a Galactic Olympiad. Who hosts it?
7: Do we want a Trade Federation to protect freighters?
8: UNKNOWN
9: UNKNOWN
10: UNKNOWN
11: A new planet is habitable. Who gets it?
12: Do we want a Galactic Cease-Fire?
13: UNKNOWN
14: Do we want to restrict trade for evil civilizations?
15: UNKNOWN
16: Do we want a limit on starbase modules?
17: Will starbases assist allies?
18: Do we want changes in government type?
19: UNKNOWN
20: There is a new galactic prison. Who gets it?
21: Who gets the UP Headquarters?
22: How many techs will everyone share?
23: UNKNOWN
24: UNKNOWN
25: Do we want to ban Terror Stars?
26: How much do we pay for a United Celebration?
27: UNKNOWN
28: Do we want taxes for starbases in someone else's territory?
29: UNKNOWN
30: How fast should Constructors be?
31: How much should the wealthiest civilization pay to everyone else?
32: Do we want to ban surprise attacks?
33: Do we want to have Neutral Zones in war?
34: Do we enforce Mining Loyalty?
35: Do we want Open Trade?
36: Do we want Open Tourism?
37 or higher: UNKNOWN