33% of retracted papers were from the US. 30% of retracted papers were from "Asian nations". The UK, India, China, and Japan each had over 5% of the retracted

33% of retracted papers were from the US. 30% of retracted papers were from "Asian nations". The UK, India, China, and Japan each had over 5% of the retracted papers. 33% of retracted US papers were fraudulent. So 67% of their retracted papers were erroneous. 25% of retracted ... is this Asian, or UK/India/China/Japan? papers were fraudulent. So 75% of their retracted papers were erroneous. How does the percentage of US papers that were retracted, compare the the percentages for other countries (it has number of retracted papers, but not number of non-retracted)? This is necessary to compare the overall percentages of fraudulent/erroneous papers; what I see in the article could mean that US researchers are less likely to make mistakes and equally (or less, even) likely to commit fraud; it doesn't necesasrily mean that US researchers commit more fraud (or make less mistakes).