| Countries | Conferences |
|---|---|
 USA | 24001 |
 UK | 4068 |
 Germany | 3790 |
 Canada | 2224 |
 India | 2008 |
 Australia | 1478 |
 Italy | 983 |
 UAE | 979 |
 France | 971 |
 Spain | 923 |
 Japan | 869 |
 China | 857 |
 Netherlands | 854 |
 Switzerland | 748 |
 Austria | 586 |
 Singapore | 503 |
 Thailand | 470 |
 Portugal | 436 |
 Belgium | 396 |
 South Africa | 370 |
 Malaysia | 322 |
 Sweden | 311 |
 Greece | 301 |
 Czech Republic | 294 |
 Poland | 286 |
 Indonesia | 277 |
 Turkey | 270 |
 Ireland | 237 |
 New Zealand | 236 |
 Denmark | 232 |
 Brazil | 215 |
 South Korea | 209 |
 Saudi Arabia | 196 |
 Norway | 191 |
 Finland | 180 |
 Mexico | 179 |
 Russia | 171 |
 Hong Kong | 159 |
 Kenya | 153 |
 Philippines | 114 |
 Vietnam | 113 |
 Hungary | 112 |
 Taiwan | 103 |
 Egypt | 92 |
 Croatia | 90 |
 Nigeria | 83 |
 Puerto Rico | 72 |
 Romania | 71 |
 Slovenia | 64 |
 Israel | 61 |
 Morocco | 57 |
 Bulgaria | 56 |
 Qatar | 54 |
 Slovakia | 45 |
 Estonia | 43 |
 Sri Lanka | 42 |
 Chile | 40 |
 Colombia | 40 |
 Lithuania | 40 |
 Argentina | 36 |
 Cyprus | 32 |
 Pakistan | 31 |
 Bangladesh | 29 |
 Macau (China) | 27 |
 Serbia | 27 |
 Oman | 26 |
 Jordan | 25 |
 Luxembourg | 25 |
 Latvia | 24 |
 Bahamas | 23 |
 Ghana | 23 |
 Nepal | 23 |
 Ukraine | 23 |
 Bahrain | 22 |
 Kazakhstan | 22 |
 Rwanda | 20 |
 Peru | 18 |
 Costa Rica | 17 |
 Iceland | 17 |
 Panama | 17 |
 Azerbaijan | 15 |
 Iran | 15 |
 Cambodia | 15 |
 Tunisia | 14 |
 Tanzania | 13 |
 Uruguay | 12 |
 Uzbekistan | 12 |
 Bosnia & Herzegovina | 10 |
 Ethiopia | 10 |
 Kuwait | 10 |
 Uganda | 10 |
 Algeria | 9 |
 Namibia | 9 |
 Brunei | 8 |
 Dominican Republic | 8 |
 Botswana | 7 |
 Georgia | 7 |
 Guatemala | 7 |
 Fiji Islands | 6 |