Compare population statistics about Latrobe, PA from the 2010 and 2000 census by race, age, gender, Latino/Hispanic origin etc.
OST file (.ost) An OST file (.ost) is an offline folder file in Microsoft Outlook. Offline folders make it possible for the user to work offline and then to synchronize changes with the Exchange server the next time they connect. The ability to work offline is useful in environments with limited or unreliable connectivity.
Instead of using two data files, one for IMAP email and one for your calendar and contacts, Outlook 2013 uses an .ost file for IMAP accounts and stores appointments, tasks, contacts, and notes in the IMAP data file, in folders labeled  (This computer only) .f you have calendar and contacts in an IMAP ost file (new feature in Outlook 2013) then your color category options are limited, because they are limited in IMAP. My recommendation is to export the contents of the 'this computer only' folder to a pst file and set it as default.