| Microorganism | Period* | |||||||||||
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sept | Oct | Nov | Dec | |
| Not identified | 9.8 | 4.9 | 12.2 | 7.3 | 7.3 | 7.3 | 7.3 | 9.8 | 12.2 | 12.2 |
| 9.8 |
| S. epidermidis | 11.9 | 5.6 | 9.4 | 6.3 | 10 | 5 | 6.9 | 6.9 | 6.3 | 10 | 12.5 | 9.4 |
| S. aureus | 8.2 | 11.2 | 9.2 | 8.2 | 8.2 | 7.1 | 11.2 | 6.1 | 9.2 | 6.1 | 6.1 | 9.2 |
| Streptococcus sp. | 8.1 | 10.8 | 8.1 | 8.1 | 18.9 | 2.7 | 10.8 | 10.8 | 10.8 | 5.4 | 2.7 | 2.7 |
| Enterococcus sp. |
| 11.8 |
| 11.8 | 17.6 | 5.9 |
| 17.6 | 5.9 | 11.8 | 5.9 | 11.8 |
| Pseudomonas sp. | 16.7 | 16.7 |
| 11.1 | 16.7 | 5.6 | 11.1 |
| 11.1 | 0 | 5.6 | 5.6 |
| Escherichia Coli | 3.2 | 16.1 | 6.5 | 6.5 | 9.7 | 3.2 | 6.5 | 3.2 | 6.5 | 12.9 | 12.9 | 12.9 |
| Negative culture | 11.2 | 7.1 | 6.1 | 9.2 | 8.2 | 5.1 | 9.2 | 17.3 | 7.1 | 10.2 | 4.1 | 5.1 |
| Enterobacter |
| 6.7 | 13.3 | 6.7 | 6.7 |
| 13.3 | 6.7 |
| 6.7 | 26.7 | 13.3 |
| Klebsiella | 35.3 | 5.9 | 5.9 | 5.9 |
|
|
| 17.6 | 5.9 | 11.8 |
| 11.8 |
| Others | 4.2 |
| 4.2 | 12.5 | 16.7 | 12.5 | 16.7 |
| 4.2 | 4.2 | 8.3 | 16.7 |
|
| 9.8 | 4.9 | 12.2 | 7.3 | 7.3 | 7.3 | 7.3 | 9.8 | 12.2 | 12.2 |
| 9.8 |