| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $40,100 | $22,267 |
| 2016 | $41,162 | $20,444 |
| 2017 | $42,674 | $25,667 |
| 2018 | $42,674 | $20,237 |
| 2019 | $45,570 | $21,995 |
| 2020 | $45,760 | $22,185 |
| 2021* | $46,973 | $22,376 |
| 2022* | $48,217 | $22,568 |
| 2023* | $49,495 | $22,762 |
| 2024* | $50,807 | $22,958 |
| 2025* | $52,153 | $23,156 |
