Year	No. of samples examined	Frequency of bacterial isolates		Total Prevalence [%]	χ²	[P-value]
Year	No. of samples examined	Dry Season [%]	Rainy Season [%]	Total Prevalence [%]	χ²	[P-value]
2014	80	9/49 [18.36]	6/31 [19.35]	15 [18.75]	0.012	0.91
2015	135	26/85 [30.58]	10/50 [20.00]	36 [26.66]	1.30	0.25
2016	185	26/116 [22.41]	11/69 [15.94]	37 [20.00]	0.76	0.38
2017	140	29/91 [31.86]	13/49 [26.53]	42 [30.00]	0.22	0.64
Total	540	90/341 [26.40]	40/199 [20.10]	130 [24.07]	2.39	0.12
χ²		4.83	1.97	6.11
P-value		0.19	0.58	0.11