contactid
firstname
lastname
nickname
displayname
title
company
notes
groupnames_<n>  
number_<type>_<n>
defaultnumber_<type>
defaultemail
emails_<n>
source
pictureurl
weburl
ringtoneurl
animatedtoneurl
postaladdress_<type>
otherAddress_<type>
birthday
anniversary
imaddresses_<n>

---------
<n> can be any digit starting from 1
---------
<type>  can be:
Unspecified
Home
Office
Other
Mobile
Fax
Video
Assistant
UnknownType


Notes:
The birthday and aniversary elements stored in the Hashtable are Date objects