On the blog OpenGeoData was published a short report on how much mapper is actively involved in the project OpenStreetMap or how much editing was done mapper unique in the country. Data were collected for two months with a deadline of September 30. It is not surprising that won Germany ... there are eight very polpulární. The second place went to Great Britain, a country of origin OSM. Third place France.
For comparison, I created a table in which I took into account the active area of the state mapper. The result is so much one mapper manages square kilometers. Value sqrt APM / 2 is the value of how much mapper has traveled to get to your colleagues territory
APM = Area per Mapper