Welcome to the Rf.Lotto project!
Most of the value comes from lotto data from germany in machine readable format. As of today (07.10.2012) it contains 3254 drawings over a period of 57 years.
The first 35 drawings do not include the "Zusatzzahl". Starting with January 2001, Wednesday and Saturday drawings are available. Before that only Saturday drawings are available.
I am starting adding Wednesday drawings from end of 1999 to the past (current position: 03.11.1999). Before 2000 there were 2 drawings every Wednesday.
Data comes from the website die "lottozahlen.de":http://lottozahlen.de or "lottozahlen.eu":http://lottozahlen.eu, however in a very machine unfriendly fashion.