htmlCntConstRate_filterOff: concurrency levels and robot population

This information is based on the client-side measurements.

1. concurrent HTTP/TCP connections

Connection state	Number of times		Mean concurrency level
	entered	left
open	721.00	720.00	0.02
established	721.00	720.00	0.02

concurrent HTTP/TCP connection level trace

TBD.

2. population level

Number of agents		Mean population level
created	destroyed
1.00	0.00	1.00

population level trace

Populus is a set of all live robot or server agents. While alive, an agent may participate in HTTP transactions or remain idle.

3. concurrent HTTP transactions

Transaction state	Number of times		Mean concurrency level
	entered	left
active	721.00	720.00	0.02
waiting	0.00	0.00	0.00

concurrent HTTP transaction level trace

TBD.