how many countries earned only one gold medal?
4
Rank Nation Gold Silver Bronze Total
1 Puerto Rico 17 27 13 57
2 Bahamas 17 15 19 51
3 México 9 9 5 23
4 Jamaica 8 6 4 18
5 Barbados 7 3 6 16
6 Trinidad and Tobago 7 2 2 11
7 Venezuela 3 3 8 14
8 Colombia 3 1 2 6
9 U.S. Virgin Islands 1 1 3 5
10 Martinique 1 1 0 2
11 Antigua and Barbuda 1 0 1 2
12 Suriname 1 0 0 1
13 Bermuda 0 4 2 6
14 Dominican Republic 0 2 4 6
15 Panamá 0 1 2 3
16 Cayman Islands 0 0 2 2
16 Saint Kitts and Nevis 0 0 2 2
csv/204-csv/800.tsv