DE  GERMANY
DU  EAST GERMANY
AR  ARGENTINA
AU  AUSTRALIA
AT  AUSTRIA
BE  BELGIUM
BR  BRAZIL
BG  BULGARIA
CA  CANADA
CL  CHILE
TW  TAIWAN
CO  COLOMBIA
KR  KOREA; REPUBLIC OF
DK  DENMARK
EG  EGYPT
EC  ECUADOR
ES  SPAIN
US  UNITED STATES
FI  FINLAND
FR  FRANCE
GR  GREECE
IN  INDIA
ID  INDONESIA
IE  IRELAND
IS  ICELAND
IL  ISRAEL
IT  ITALY
JP  JAPAN
LB  LEBANON
LR  LIBERIA
MG  MADAGASCAR
MA  MOROCCO
MX  MEXICO
NO  NORWAY
NC  NEW CALEDONIA
NZ  NEW ZEALAND
PK  PAKISTAN
NL  NETHERLANDS
PE  PERU
PH  PHILIPPINES
PL  POLAND
PT  PORTUGAL
RO  ROMANIA
GB  GREAT BRITAIN
CN  CHINA
SE  SWEDEN
TH  THAILAND
TN  TUNISIA
TR  TURKEY
SU  SOVIET UNION
ZA  SOUTH AFRICA
UY  URUGUAY
VE  VENEZUELA
YU  YUGOSLAVIA
99  UNKNOWN
AG  ANTIGUA
DZ  ALGERIA
AO  ANGOLA
BB  BARBADOS
BS  BAHAMAS
CR  COSTA RICA
CU  CUBA
CY  CYPRUS
EE  ESTONIA
FJ  FIJI
GH  GHANA
HN  HONDURAS
HK  HONG KONG
CI  COTE D'IVOIRE
KW  KUWAIT
LV  LATVIA
LT  LITHUANIA
MU  MAURITIUS
MT  MALTA
MC  MONACO
MY  MALAYSIA
MR  MAURITANIA
NG  NIGERIA
PA  PANAMA
CD  CONGO; THE DEMOCRATIC REPUBLIC OF THE
RU  RUSSIAN FEDERATION
SA  SAUDI ARABIA
SC  SEYCHELLES
SN  SENEGAL
SG  SINGAPORE
SL  SIERRA LEONE
VC  SAINT VINCENT AND THEN GRENADINES
TO  TONGA
TT  TRINIDAD AND TOBAGO
UA  UKRAINE
WS  SAMOA; WESTERN
YE  YEMEN
ZZ  MISCELLANEOUS ORGANIZATION
MH  MARSHALL ISLANDS
HR  CROATIA
EU  EUROPEAN UNION