Data export API

Files:

full_data_w18_1997.html
export_w3_1999.html
clients_w6_2000.html
registrations_w42_2001.html
passwords_w18_2002.html
users_w35_2003.html
food_w46_2005.html
data_w21_2006.html
extensions_w27_2008.html
espionage_w2_2009.html