| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $49,900 | $25,669 |
| 2016 | $50,451 | $26,690 |
| 2017 | $51,631 | $27,155 |
| 2018 | $51,631 | $25,600 |
| 2019 | $54,515 | $25,578 |
| 2020 | $55,805 | $26,868 |
| 2021* | $57,111 | $27,336 |
| 2022* | $58,447 | $27,811 |
| 2023* | $59,815 | $28,295 |
| 2024* | $61,215 | $28,787 |
| 2025* | $62,647 | $29,288 |