A Japanese funeral inclues a wake, the cremation of the deceased, a burial in a family grave, and a periodic memorial service. 99.82% of all deceased Japanese are cremated, according to 2005 statistics. Most of these are then buried in a family grave, but scattering of the ashes has become more popular in recent years, including a burial at sea and even on rare occasions a burial in space. The average cost for a Japanese funeral is 4 million yen, the most expensive in the world. One main reason for the high cost is the scarcity of funeral plots (it is almost impossible to buy a grave in Tokyo). Another reason is the price gouging common at Japanese funeral homes, combined with the hesitation of the relatives of the deceased to negotiate and to compare prices.