HANADB LOAD TAB DATA DURATION

if i can serched this query. can i check retaintion days of collect data ?

this quey : select o.name , retention_days_current from _sys_statistics.statistics_schedule s, _sys_statistics.statistics_objects o where s.id = o.id

becuses, i can see that result values is 45 days. but after 20 days , i can not see load tab data .

how can i check real retaintion days of load tab data ?