Can someone please explain wots happening here? very 15 mins...

Can someone please explain wots happening here? very 15 mins there is a reasonable buy, then drops...

Time Price ($) Volume Value ($) Condition
1:33:55 PM 0.081 93 7.533
1:31:08 PM 0.081 93 7.533
1:30:05 PM 0.082 8,250 676.5
1:28:20 PM 0.081 200 16.2
1:28:05 PM 0.081 19,700 1,595.70
1:15:12 PM 0.082 8,250 676.5
1:11:12 PM 0.081 199 16.119
1:07:30 PM 0.081 6,000 486
1:00:38 PM 0.081 274 22.194
1:00:38 PM 0.081 273 22.113
1:00:23 PM 0.082 8,250 676.5
12:45:08 PM 0.082 8,250 676.5
12:31:12 PM 0.081 7 0.567
12:31:12 PM 0.081 235 19.035
12:31:12 PM 0.081 234 18.954
12:30:23 PM 0.082 8,250 676.5
12:15:22 PM 0.082 3,474 284.868
12:15:22 PM 0.082 4,776 391.632
12:00:42 PM 0.082 8,250 676.5
11:51:12 AM 0.081 273 22.113