Analysis of information sources in references of the Wikipedia article "全球最畅销专辑列表" in Chinese language version.
1 million copies were sold by 1958, 2.25 million by 1960, almost 3 million by 1963
first time that a complete score of a Broadway musical was put on wax, by 1945 sales were at half a million
...25 million copies sold worldwide by May 1, 1979
The next two BSB albums ("Backstreet's Back" and "Millennium") enjoyed worldwide sales of 24 million copies each.
The next two BSB albums ("Backstreet's Back" and "Millennium") enjoyed worldwide sales of 24 million copies each.
first time that a complete score of a Broadway musical was put on wax, by 1945 sales were at half a million
...25 million copies sold worldwide by May 1, 1979
