Participants

You can see an up to date list, and more information, in the IMO web, http://www.imo-official.org/year_reg.aspx

Number of competing countries: 97.

Total number of contestants: 535.

#	Code	Country ↑	Registred participants*
#	Code	Country ↑	C	L	DL	O_A	O_B	O_C
Total			535	98	94	45	31	17
1	ALB	Albania	6	1	1
2	ARG	Argentina	6	1	1
3	ARM	Armenia	6	1	1
4	AUS	Australia	6	1	1	2	1
5	AUT	Austria	6	1	1		1
6	AZE	Azerbaijan	6	1	1
7	BGD	Bangladesh	4	1	1			1
8	BLR	Belarus	6	1	1		1
9	BEL	Belgium	6	1	1	1
10	BEN	Benin				1
11	BOL	Bolivia	5	1	1
12	BIH	Bosnia and Herzegovina	6	1	1
13	BRA	Brazil	6	1	1
14	BGR	Bulgaria	6	1	1	1
15	KHM	Cambodia	6	1	1			1
16	CAN	Canada	6	1	1		1
17	CHI	Chile	3	1	1
18	CHN	China	6	1	1	1	1
19	COL	Colombia	6	1	1
20	CRI	Costa Rica	6	1
21	HRV	Croatia	6	1	1
22	CUB	Cuba	1	1
23	CYP	Cyprus	6	1	1
24	CZE	Czech Republic	6	1	1
25	DEN	Denmark	6	1	1
26	ECU	Ecuador	6	1	1
27	EST	Estonia	6	1	1
28	FIN	Finland	6	1	1	1
29	FRA	France	6	1	1	1
30	GEO	Georgia	6	1	1
31	GER	Germany	6	1	1	6	1	3
32	HEL	Greece	6	1	1		1
33	GTM	Guatemala	4	1	1
34	HND	Honduras	2	1	1
35	HKG	Hong Kong	6	1	1	1
36	HUN	Hungary	6	1	1
37	ISL	Iceland	5	1	1
38	IND	India	6	1	1	1
39	IDN	Indonesia	6	1	1	1	1
40	IRN	Iran	6	1	1	1	3
41	IRL	Ireland	6	1	1	1
42	ISR	Israel	6	1	1
43	ITA	Italy	6	1	1		1	2
44	JPN	Japan	6	1	1	3	1
45	KAZ	Kazakhstan	6	1	1	2
46	PRK	Korea, DPR of	6	1	1
47	KOR	Korea, Republic of	6	1	1	3	4
48	KWT	Kuwait	5	1	1	1
49	KGZ	Kyrgyzstan	5	1	1
50	LVA	Latvia	6	1	1	1
51	LIE	Liechtenstein	2	1	1
52	LTU	Lithuania	6	1	1		1
53	LUX	Luxembourg	5	1	1
54	MAC	Macau	6	1	1
55	MKD	Macedonia, FYR of	6	1	1	1		1
56	MAS	Malaysia	6	1	1	1	1
57	MRT	Mauritania				1
58	MEX	Mexico	6	1	1	1
59	MDA	Moldova	6	1	1
60	MNG	Mongolia	6	1	1
61	MNE	Montenegro	3	1	1
62	MAR	Morocco	6	1	1
63	NLD	Netherlands	6	1	1	2		1
64	NZL	New Zealand	6	1	1			1
65	NOR	Norway	6	1	1			1
66	PAK	Pakistan		1		2
67	PAR	Paraguay	4	1	1
68	PER	Peru	6	1	1
69	PHI	Philippines	3	1	1
70	POL	Poland	6	1	1
71	POR	Portugal	6	1	1
72	PRI	Puerto Rico	3	1	1
73	ROU	Romania	6	1	1	1	1
74	RUS	Russia	6	1	1	1	1
75	SLV	Salvador, El	4	1	1
76	SAU	Saudi Arabia	6	1	1		1
77	SRB	Serbia	6	1	1
78	SGP	Singapore	6	1	1		2
79	SVK	Slovakia	6	1	1	1
80	SVN	Slovenia	6	1	1
81	SAF	South Africa	6	1	1	1
82	ESP	Spain	6	1	1
83	LKA	Sri Lanka	6	1	1
84	SWE	Sweden	6	1	1
85	SUI	Switzerland	6	1	1
86	SYR	Syria				1	1
87	TWN	Taiwan	6	1	1	1		1
88	TJK	Tajikistan	6	1	1
89	THA	Thailand	6	1	1	1	2
90	TTO	Trinidad and Tobago	6	1	1
91	TUN	Tunisia	4	1	1
92	TUR	Turkey	6	1	1
93	TKM	Turkmenistan	6	1	1
94	UKR	Ukraine	6	1	1
95	UAE	United Arab Emirates	4	1	1
96	UNK	United Kingdom	6	1	1		1	1
97	USA	United States of America	6	1	1	1	3
98	URY	Uruguay	5	1
99	UZB	Uzbekistan	6	1	1			1
100	VEN	Venezuela	2	1	1
101	VNM	Vietnam	6	1	1			3

*C: contestant, L: leader, DL: deputy leader, O_A: observer A, O_B: observer B, O_C: observer C