 From a December 2014 survey by the VU University Amsterdam, it was concluded that the Dutch population has 27% ietsists, 31% agnostics, 25% atheists and 17% theists.As ietsists cannot be neatly classified as religious or nonreligious, ietsism is somewhat notorious for blighting statistics on religious demographics.Hence labeling ietsists as either religious or nonreligious will tilt the demographic balance for those countries to either predominantly religious or predominantly nonreligious.