how to explain this output from rspr?

[liamxg]

Dear @cwhidden,

I compared 12 trees using pairwise option, please help me on how to explain this output:

0,22,21,22,22,19,18,20,19,15,15,14
22,0,16,18,24,16,19,22,21,20,25,19
20,16,0,15,21,15,14,19,19,18,20,21
22,18,16,0,22,15,15,21,20,19,21,22
22,25,21,22,0,21,21,19,23,24,24,23
19,16,16,15,21,0,14,16,19,17,19,20
18,19,15,15,21,14,0,15,19,18,21,21
20,22,20,21,19,16,15,0,20,20,20,18
19,22,20,20,23,19,19,20,0,20,23,23
15,20,18,19,24,17,18,20,20,0,20,16
15,25,20,21,24,19,21,20,23,20,0,17
14,19,22,22,24,20,21,18,23,16,17,0

Best,
Liam