In the past 5 years, revenue has increased for 4 years, with an average growth rate of 17.6%, operating profit for 4 years excluding 2019, with an average growth rate of 28.4% and an average net profit growth rate of 21.3%. Interest expenses in 2022 account for 3.7% of operating profit, and the interest burden is very light. The gross margin increased from 22.2% to 32.4% in the past 5 years, and the return on net assets fluctuated from 20% to 15.6%.