Why does the retail Individual Investor RII bidding status is not getting updated every hour?

IPO subscription detail or bidding status for book building IPO is provided by the stock exchanges when IPO is open for bidding. NSE and BSE websites usually publish this information.Only part of bidding status gets updated every hour and remaining information is made available at the end of the day. Usually Total Bids Received, Total Bids Received at Cut-off Price and total number of times issue is subscribed information is updated every hour.The detail bidding status including category wise bidding detail (i.e detail for Qualified Institutional Buyers (QIBs) - Foreign Institutional Investors (FIIs), Domestic Financial Institutions (Banks/ Financial Institutions(FIs)/ Insurance Companies), Mutual Funds, Non Institutional Investors - Corporates, Individuals (Other than RIIs), Retail Individual Investors (RIIs) etc.) is updated once in a day.