Figure 1
The horizontal axis ranges from 2020 to 2024 in yearly increments. The vertical axis ranges from 0 to 40, marked in increments of 10. The line graph begins at (2020, 0) and passes through (2021, 2), (2022, 22), (2023, 27), and terminates at (2024, 32). Note: All numerical data values are approximated.OPA usage over time