Participant Countries

No. Country Name 1st IJSO 2nd IJSO 3rd IJSO 4th IJSO 5th IJSO 6th IJSO
1 Afganistan     + + +  
2 Albania +   + +    
3 Argentina     + + +  
4 Australia       Obs +  
5 Austria         Obs  
6 Azerbaijan + + + + +  
7 Belgium         +  
8 Bolivia         +  
9 Brazil + + + + +  
10 Brunei Darussalam + +   +  
11 Bulgaria         +  
12 Chinese Taipei + + + + +  
13 Croatia + +   +    
14 Czech Republic         Obs  
15 Denmark         Obs  
16 Estonia + + + + +  
17 Germany + + + + +  
18 Great Britain   + + + +  
19 Hong Kong, China     + + +  
20 Hungary + + + + +  
21 India + + + + +  
22 Indonesia + + + + +  
23 Iran Obs     +  
24 Ireland + + + + +  
25 Japan         Obs  
26 Jordan +        
27 Kazakhstan +   + + +  
28 Kenya + + + + +  
29 Kingdom of Cambodia + + + +  
30 Kuwait   + + +  
31 Lithuania       Obs +  
32 Madagaskar   +      
33 Malaysia         +  
34 Maldives         Obs  
35 Mexico + + + + +  
36 Moldova + + +    
37 Mongolia   + + + +  
38 Myanmar       + +  
39 Nigeria + + + + +  
40 Philippine + +   + +  
41 Rep. of Ghana + + + + +  
42 Romania + + + + +  
43 Russia + + + + +  
44 Saudi Arabia + +   +    
45 Serbia + + + + +  
46 Singapore       + +  
47 Slovakia +     + +  
48 South Africa   +   +  
49 South Korea + + + + +  
50 Sri Lanka + +   + +  
51 Thailand + + + + +  
52 The Netherlands   + + + +  
53 Turkey +        
54 United Arab Emirates   +   + +  
55 United State of America (USA)         Obs  
56 Vietnam +     +    
57 Zimbabwe   + + + +  
  Guest Team (YPJ-Papua Indonesia)         +  
               
  Number of Team/Country 33 33 30 38 50