I want to know the answer to the following question:
What percentage of copper has been extracted since 1900?
All the background I'm provided with is that "Copper has been in use at least 10,000 years, but more than 95% of all copper ever mined and smelted has been extracted since 1900, and more than half was extracted in only the last 24 years.". Is that enough to answer the question?
Answer: yes