Arbitrary command exported "Totals" percentile latencies are 0 in some cases.

[filipecosta90]

We need to replicate the issue and add to the test suite and fix.

,"Time-Serie":{
				"0":{
					"Count": 664260
					,"Average Latency": 1.499
					,"Min Latency": 0.000
					,"Max Latency": 5.727
					,"p50.00": 0.000
					,"p99.00": 0.000
					,"p99.90": 0.000
					}
				,"1":{
					"Count": 498130
					,"Average Latency": 2.002
					,"Min Latency": 0.000
					,"Max Latency": 21.119
					,"p50.00": 0.000
					,"p99.00": 0.000
					,"p99.90": 0.000
					}