Another evidence of cooperation between the Czech Statistical Society and the Slovak Statistical and Demographical Society are STAKAN and PRASTAN conferences. The STAKAN conference is held in the Czech Republic, while the PRASTAN conference is held in Slovakia. The conference is organised every odd year, once in the Czech Republic and once in Slovakia. The STAKAN conference has been organised since 1999 and the PRASTAN since 2001. The last conference was PRASTAN 2017 and the upcoming conference is STAKAN 2019.