Subsequent updates have been quarterly and biannual. Leeches mostly have an annual or biannual life cycle. It is not known whether this species exhibits annual or biannual reproduction. The tradition of biannual conferences and symposia started in Georgia in the 1980s. In March 1909, Crowley began production of a biannual periodical titled "The Equinox". Many high schools have their own radio stations, monthly or biannual magazines etc. In 2012, Spencer founded "Radix Journal" as a biannual publication of Washington Summit Publishers. Under the editorship of Marta Lamas, a biannual publication, "Debate feminista" was launched in 1990. In December 2019, the Institute launched the first edition of the biannual 'Business Review' magazine. SDUSA was governed by biannual conventions which invited the participation of interested observers. Since 2006, Lund has been the host of the biannual Lund International Choral Festival. Examinations were conducted at this point on a biannual basis. Since 1953 the base has hosted an air show on a biannual schedule. The biannual fashion event Kobe Fashion Week, featuring the Kobe Collection, is held in Kobe. It had published "Checkerspot", a now discontinued biannual climate change magazine.