Data export API

Files:

full_data_w22_1997.html
dump_w27_1998.html
new_users_w18_1999.html
clients_w7_2001.html
registrations_w32_2002.html
passwords_w27_2003.html
food_w32_2004.html
data_w1_2005.html
extensions_w1_2008.html
espionage_w22_2009.html