The Global Wellness Institute recently reported that global wellness tourism revenues increased by 14% from 2013-2015 (to $563 billion), more than twice as fast as tourism overall (6.9%). It is also predicted that the sector will grow by another 37.5% by 2020 (to $808 billion).
Another interesting fact is that international wellness tourism revenues (20%) have been growing much faster than domestic wellness revenues (11%). Moreover, secondary wellness tourism (wellness not being the main purpose of the trip) is growing slightly faster than primary wellness tourism (wellness being the main purpose).
Source : Tourism-Review