Countries in IChO

05  National teams participated in the IChO

            Table:The number of countries and participants in the IChO

IChO 

City

Year

Number of

countries

Number of

participants

1st

Prague

1968

3

23

2nd

Katowice

1969

4

20

3rd

Budapest

1970

7

28

4th

Moscow

1972

7

28

5th

Sofia

1973

7

28

6th

Bucurest

1974

9

36

7th

Veszprem

1975

12

48

8th

Halle

1976

12

46

9th

Bratislava

1977

12

47

10th

Torun

1978

12

48

11th

Leningrad

1979

11

44

12th

Linz

1980

13

52

13th

Burgas

1981

14

55

14th

Stockholm

1982

17

68

15th

Timisoara

1983

18

72

16th

Frankfurt

1984

20

80

17th

Bratislava

1985

21

83

18th

Leiden

1986

22

86

19th

Veszprem

1987

26

103

20th

Espoo

1988

26

104

21st

Halle

1989

26

104

22nd

Paris

1990

28

112

23rd

Lodz

1991

30

118

24th

Pittsburgh

1992

33

131

25th

Perugia

1993

37

148

26th

Oslo

1994

41

156

27th

Beijing

1995

42

163

28th

Moscow

1996

45

175

29th

Montreal

1997

47

184

30th

Melbourne

1998

47

186

31st

Bangkok

1999

51

196

32nd

Copenhagen

2000

54

208

33rd

Mumbai

2001

54

213

34th

Groningen

2002

57

225

35th

Athen

2003

59

232

36th

Kiel

2004

61

233

37th

Taipei

2005

60

225

38th

Gyeongsan

2006

67

254

39th

Moscow

2007

67

256

40th

Budapest

2008

66

257

41st

Cambridge

2009

64

250

42nd

Tokyo

2010

68

267

43rd

Ankara

2011

70

273

44th

Washington

2012

72

283

45th

Moscow

2013

73

291

46th

Hanoi

2014

75

291

47th

Baku

2015

74

290

48th

Tbilisi

2016

73

264

49th

Nakhon Pathom

2017

76

296

50th

Bratislava, Prague

2018

76

300

See also the graphs 1 and 2 on the next page!

Graph 1

Graph 2

Contact us

Dr. Anton Sirota|Director of the IChO IIC
IUVENTA – Slovak Youth Institute
Karloveská 64, 811 04 Bratislava, Slovakia
E-mail: anton.sirota@stuba.sk|Phone: +421 907 473 367

Dr. Martin Putala|Department of Organic Chemistry
Faculty of Natural Sciences
Comenius University, Bratislava, Ilkovičova 6, Slovakia
E-mail: putala@fns.uniba.sk|Phone: +421 918 669 092