The table is for RTP operation statistics. It contains
summarized information of the results for one RTP operation.
A rolling accumulated history of this information
is maintained in a series of hourly 'group(s)'. The operation
of this table is same as that of rttMonStatsCaptureTable,
except that this table will store 2 hours of data.
It is a rollover table. When rttMonRtpStatsStartTimeIndex
groups exceeds the rttMonStatisticsAdminNumHourGroups value, the
oldest corresponding hourly group will be deleted and will be
replaced with the new rttMonRtpStatsStartTimeIndex hourly
group.