2017: Religionsstatistik Korea
Korea Times, 10.01.2017
More Koreans now non-believers, census shows
"Christians surpassed Buddhists in their number for the first time in Korea, according to Statistics Korea's census from 2015. ...
“Christians were elated but scratched their heads, Buddhists were shocked and repented, while Catholics were calm yet deep in thought,” a local report said of the census result."