Do you know if those stats took into account massive economic events? Such as market crashes?
Which tend to happen at least once a decade?
People often have a point to make, and will often ignore such data to make it. To add to this, outside of honest intent prejudiced with personal bias, there are parties lookong to undermine any aspect of success the West has, by invalidating those successful models.
If your strategy is successful 8/10 years and your lose enough money during the other 2 to be marked as unsuccessful, is that really a "successful model"?
Which tend to happen at least once a decade?
People often have a point to make, and will often ignore such data to make it. To add to this, outside of honest intent prejudiced with personal bias, there are parties lookong to undermine any aspect of success the West has, by invalidating those successful models.