Some statistics and chronology. Expeditions to Krubera-Voronya cave under the auspices of the Ukrainian Speleological Association since 1999.

1999. August. 9 participants (Ukraine). Leader Yury Kasyan

2000. August. 11 participants (Ukraine). Leader Yury Kasyan

2000. September. 10 participants (Ukraine, France, Spain, Russia). Leader Yury Kasyan

2001. January. 11 participants (Ukraine, Russia). Leader Yury Kasyan

2001. August. 13 participants (Ukraine). Leader Yury Kasyan

2004. August. 53 participants (Ukraine, Moldova, Spain, France, USA, Great Britain, Russia, Abkhazia). Leader Nikolay Solovyov

2004. October. 9 participants (Ukraine). Leader Yury Kasyan

2005. February. 5 participants (Ukraine). Leader Yury Kasyan

2005. September. 21 participants (Ukraine, Russia, Bulgaria). Leader Yury Kasyan

2006. July. 4 participants (Ukraine). Leader Kirill Markovskoy

2006. September. 16 participants (Ukraine, Russia). Leader Yury Kasyan

2007. August. 41 participants (Ukraine, Russia, Belarus, Great Britain). Leader Yury Kasyan

2008. August. 37 participants (Ukraine, Russia, Lithuania, Ireland, Israel). Leader Yury Kasyan

2009. August. 52 participants (Ukraine, Russia, Moldova, Israel). Leader Yury Kasyan

2010. August. 5 participants (Ukraine, Russia, Israel). Leader Yury Kasyan

2011. August. 4 participants (Ukraine, Israel). Leader Yury Kasyan

2012. August. 64 participants (Ukraine, Russia, Lithuania, Israel, Spain, Poland, Great Britain, Bulgaria, Lebanon). Leader Yury Kasyan

2013. August. 43 participants (Ukraine, Russia, Lithuania, Bulgaria, Great Britain, Belgium). Leader Yury Kasyan

2014. August. 30 participants (Ukraine, Russia, Israel, Italy, Poland). Leader Yury Kasyan

2015. August. 15 participants (Ukraine, Crimea, Israel, USA, Iran). Leader Yury Kasyan