The number of working women in Japan topped 30 million in June for the first time since comparable data became available in 1953, with more women working full time amid the chronic labor shortage, government data showed Tuesday.

The number of women holding a job rose 530,000 from a year before to reach 30.03 million, contributing to the total number of employees hitting a record 67.47 million.

The unemployment rate improved to 2.3 percent in June from 2.4 percent the previous month, helped by women's aggressive job market participation, according to the government data.