IFPI has awarded 5×20 All the BEST!! 1999-2019 the top spot for the Top 10 Global Albums 2019 category
IFPI stands for International Federation of the Phonographic Industry who represents the interests of the worldwide recording industry since 1933
The Top 10 Global Albums tabulation is based on the combination of worldwide physical & digital album sales
http://www.ifpi.org/
https://natalie.mu/music/news/372031
https://twitter.com/IFPI_org/status/1240669898067587076