DS - Asia 2,971
D - General History 301
DT - Africa 264
DP - Spain, Portugal 67
DR - Balkan Peninsula 62
DK - Russia, Soviet Union, Former Soviet Republics, Poland 37
DA - Great Britain 32
DF - Greece 11
DU - Oceania (South Seas) 10
DD - Germany 9
DG - Italy, Malta 6
DC - France, Andorra, Monaco 5
DL - Northern Europe, Scandinavia 5
DB - Austria, Liechtenstein, Hungary, Czechoslovakia 2
DE - Grecco-Roman World 1
DH - Low Countries 1
DJK - Eastern Europe (General) 1