For the past five years, revenue has continued to grow, but operating profit has declined for four years except for 2020 due to the decline in gross margin and the increase in fee proportions. Net income has been significantly declining for nearly three years due to other non-operating income. The gross margin has decreased from 26.6% to 22.4% in the past five years, and the return on net assets has dropped from a high of 16.8% in 2020 to 8.3%.