Table:
text: Athletics at the 1987 Pan American Games
Medal table
Medal table
Rank_ Nation Gold Silver Bronze Total
1 United States (USA) 26 14 15 55
2 Cuba (CUB) 6 9 8 23
3 Mexico (MEX) 5 1 1 7
4 Brazil (BRA) 3 3 2 8
5 Jamaica (JAM) 2 3 4 9
6 Chile (CHI) 1 0 1 2
7 Canada (CAN) 0 7 3 10
8 Bahamas (BAH) 0 2 3 5
9 Dominican Republic (DOM) 0 1 1 2
10 Ecuador (ECU) 0 1 0 1
10 Costa Rica (CRC) 0 1 0 1
10 Argentina (ARG) 0 1 0 1
13 Puerto Rico (PUR) 0 0 2 2

text: Athletics at the 1987 Pan American Games
Medal table
Medal table
Rank_ Nation Gold Silver Bronze Total
13 Colombia (COL) 0 0 2 2
15 Venezuela (VEN) 0 0 1 1

Question: What is the lowest number of bronze medals in track and field at the 1987 Pan American Games for teams under 13?