How many people lost money in crypto?

Could you please elaborate on the number of individuals who have incurred financial losses in the realm of cryptocurrencies? I'm particularly interested in understanding the magnitude of this loss and the factors that might have contributed to it. Additionally, do you have any insights into the demographics of those affected? Are there any commonalities among those who have suffered losses, such as specific investment strategies or levels of experience in the crypto market? Thank you for your time and expertise.