Select Date of Issue:
| 1928 (Spanish) Jan 3 5 7 10 12 14 17 19 21 24 26 28 31 | 1928 (English) Jan 3 5 7 10 12 14 17 19 21 24 26 28 31 |
| 1928 (Spanish) Feb 2 4 7 9 11 14 16 18 21 23 25 28 | 1928 (English) Feb 2 4 7 9 11 14 16 18 21 23 25 28 |
| 1928 (Spanish) Mar 1 3 6 8 10 13 15 17 20 22 24 27 29 31 | 1928 (English) Mar 1 3 6 8 10 13 15 17 20 22 24 27 29 31 |
| 1928 (Spanish) Apr 3 5 7 10 12 14 17 19 21 24 26 28 | 1928 (English) Apr 3 5 7 10 12 14 17 19 21 24 26 28 |
| 1928 (Spanish) May 1 3 5 8 10 12 15 17 19 22 24 26 29 31 | 1928 (English) May 1 3 5 8 10 12 15 17 19 22 24 26 29 31 |
| 1928 (Spanish) Jun 2 5 7 9 12 14 16 19 21 23 26 28 30 | 1928 (English) Jun 2 5 7 9 12 14 16 19 21 23 26 28 30 |
| 1928 (Spanish) Jul 3 5 7 10 12 14 17 19 21 24 26 28 31 | 1928 (English) Jul 3 5 7 10 12 14 17 19 21 24 26 28 31 |
| 1928 (Spanish) Aug 2 4 7 9 11 14 16 18 21 23 25 28 30 | 1928 (English) Aug 2 4 7 9 11 14 16 18 21 23 25 28 30 |
| 1928 (Spanish) Sep 1 4 6 8 11 13 15 18 20 22 25 27 29 | 1928 (English) Sep 1 4 6 8 11 13 15 18 20 22 25 27 29 |
| 1928 (Spanish) Oct 2 4 6 9 11 13 16 18 20 23 25 27 30 | 1928 (English) Oct 2 4 6 9 11 13 16 18 20 23 25 27 30 |
| 1928 (Spanish) Nov 1 3 6 8 10 13 15 17 20 22 24 27 29 | 1928 (English) Nov 1 3 6 8 10 13 15 17 20 22 24 27 29 |
| 1928 (Spanish) Dec 1 4 6 8 11 13 15 18 20 22 25 27 29 | 1928 (English) Dec 1 4 6 8 11 13 15 18 20 22 25 27 29 |
| 1928 (Spanish) Indices Jan to Mar | 1928 (English) Indices Jan to Mar Apr to Jun Jul to Sep Annual Annual |