| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $48,000 | $28,343 |
| 2016 | $48,722 | $28,124 |
| 2017 | $50,813 | $29,775 |
| 2018 | $50,813 | $27,849 |
| 2019 | $53,100 | $25,040 |
| 2020 | $55,290 | $27,230 |
| 2021* | $57,568 | $27,020 |
| 2022* | $59,940 | $26,812 |
| 2023* | $62,409 | $26,606 |
| 2024* | $64,981 | $26,401 |
| 2025* | $67,658 | $26,198 |