As of 2021,[update] there are about 30,000 distinct incunable editions known to remain extant.[1] The probable number of surviving individual copies is much higher, estimated at around 125,000 in Germany alone.[2] Through statistical analysis, it is estimated that the number of lost editions is at least 20,000.[3] Around 550,000 copies of around 27,500 different works have been preserved worldwide.[4]