Performance from DW 2 days old on SCOM 2012 SP1

Hi,

I am a bit concerned and would just like some clarification,

In my lab SCOM 2007R2 i can pull data for the day before on performance from my datawarehouse but in SCOM 2012SP1 also in my lab i can only pull performance data 2 days ago with the below query, i would like to get the SCOM Agent CPU Utilization report to say (Both the settings are the same on 2007R2, 2012Sp1 for the grooming on the OperationsManagerDB) this happens on my Production SCOM 2012 SP1 enviroment as well.

This is the SQL Query i am Using to pull the data.

Use OperationsManagerDW

SELECT     top (100) Perf.vPerfDaily.DateTime, dbo.vManagedEntity.Path, dbo.vPerformanceRule.CounterName,
                      dbo.vPerformanceRuleInstance.InstanceName, round (Perf.vPerfDaily.MaxValue,2)As [% Usage]
FROM         Perf.vPerfDaily INNER JOIN
                      dbo.vManagedEntity ON Perf.vPerfDaily.ManagedEntityRowId = dbo.vManagedEntity.ManagedEntityRowId INNER JOIN
                      dbo.vPerformanceRuleInstance ON
                      Perf.vPerfDaily.PerformanceRuleInstanceRowId = dbo.vPerformanceRuleInstance.PerformanceRuleInstanceRowId INNER JOIN
                      dbo.vPerformanceRule ON dbo.vPerformanceRuleInstance.RuleRowId = dbo.vPerformanceRule.RuleRowId
WHERE     (NOT (dbo.vManagedEntity.Path = N'nul')) AND (Perf.vPerfDaily.DateTime =
                          (SELECT     MAX(DateTime) AS Expr1
                            FROM          Perf.vPerfDaily AS vPerfDaily_1))
                            AND
                                                  (dbo.vPerformanceRule.CounterName LIKE N'agent processor utilization')
and Perf.vPerfDaily.MaxValue > 15

ORDER BY [% Usage] desc