Prior to the eviction of the large Jungle camp, a July 2016 survey of the population of the Calais Jungle by Help Refugees counted 7,307 migrants (of which 761 were minors): the largest number to date. At that time, the population was increasing by an average of 50 people per day. After the Brexit vote on 23 June 2016, the population had reportedly increased to nearly 10,000. An estimated 62% of the migrants were young men; the migrants' average age was 33. Most of them do not speak French.