1973–1982 | 1983–1992 | 1993–2002 | ||||||
---|---|---|---|---|---|---|---|---|
Country | No. docs. | % | Country | No. docs. | % | Country | No. docs. | % |
USA | 211 | 40.2 | USA | 463 | 41.1 | USA | 1087 | 26.7 |
UK | 115 | 21.9 | UK | 209 | 18.5 | UK | 827 | 20.3 |
Japan | 38 | 7.2 | Japan | 115 | 10.2 | France | 394 | 9.7 |
France | 38 | 7.2 | France | 57 | 5.1 | Germany | 325 | 7.0 |
Italy | 14 | 2.7 | Germany | 55 | 4.9 | Japan | 286 | 7.0 |
Australia | 12 | 2.3 | Italy | 43 | 3.8 | Switzerland | 187 | 4.6 |
Czechoslova-kia | 12 | 2.3 | Poland | 31 | 2.8 | Italy | 155 | 3.8 |
Germany | 9 | 1.7 | Russia | 19 | 1.7 | Spain | 74 | 1.8 |
Switzerland | 9 | 1.7 | Canada | 13 | 1.2 | Holland | 72 | 1.8 |
Canada | 8 | 1.5 | Spain | 13 | 1.2 | Poland | 72 | 1.8 |
Poland | 7 | 1.3 | Israel | 13 | 1.2 | Canada | 59 | 1.5 |
Chile | 6 | 1.1 | Switzerland | 12 | 1.1 | Austria | 58 | 1.4 |
Spain | 6 | 1.1 | Others (24) | 84 | 7. 5 | Australia | 55 | 1.4 |
Others(14) | 40 | 7.6 | 1127 | 100 | Israel | 54 | 1.3 | |
525 | 100 | Belgium | 42 | 1.0 | ||||
Others (38) | 319 | 7.8 | ||||||
4066 | 100 |