Micro Four Thirds mount has the biggest market share in Japan for 2019 – 19.8%:
Micro Four Thirds further expands the possibilities of enjoyment and utilization of video by developing the lineup unique to the joint standard, and currently supports 54 companies including BtoB companies. In 2019, four new models of mirrorless cameras compliant with the Micro Four Thirds System standard were introduced, and we worked to revitalize the domestic market. As a result, we achieved a top share #1 of 19.8% in the domestic market by lens mount in 2019 (surveyed by the Four Thirds Secretariat based on sales performance data of leading camera dealers nationwide)
Via PhotoRumors