[Zope] Code question

Hi, I have a question about a code in pyhton. If the code below make my articals sort automatacly articals after 01.01.2003 ho do i get it to sort articals from 01.01.2001 to 01.01.2002 by using a simular code? python:object.portal_catalog(meta_type='Artikkel', level=object.level(), sort_on='Date', Date=['2003-01-01'],sort_order='reverse', Date_usage='range:min')