IWRN History and Number of Delegates
| 1 | Derby | United Kingdom | 1976 | 35 |
| 2 | Lyon | France | 1978 | 60 |
| 3 | Monument | USA | 1981 | 50 |
| 4 | Noordwijkerhout | The Netherlands | 1985 | 60 |
| 5 | Voss | Norway | 1995 | 70 |
| 6 | Île des Embiez | France | 1998 | 103 |
| 7 | Portland | USA | 2001 | 96 |
| 8 | Buxton | United Kingdom | 2004 | 120 |
| 9 | Munich | Germany | 2007 | 120 |
| 10 | Nagahama | Japan | 2010 | 147 |
| 11 | Uddevalla | Sweden | 2013 | 160 |
Number of Delegates per Country attending IWRN 11 (2013)
109 Abstracts from 20 Countries (Lead Author) at IWRN 11 (2013)
Number of Abstracts per Category at IWRN 11 (2013)