Analysis of information sources in references of the Wikipedia article "Kekristenan di Jepang" in Indonesian language version.
... followers of the Christian faith constitute only about a half percent of the Japanese population
The Christian community itself counts only those who have been baptized and are currently regular churchgoers — some 1 million people, or less than 1 percent of the population, according to Nobuhisa Yamakita, moderator of the United Church of Christ in Japan
The population of Japan is less than one-percent Christian
The population of Japan is less than one-percent Christian