| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $42,100 | $24,254 |
| 2016 | $42,900 | $23,512 |
| 2017 | $43,650 | $24,480 |
| 2018 | $43,650 | $24,307 |
| 2019 | $45,900 | $25,555 |
| 2020 | $46,900 | $26,555 |
| 2021* | $47,791 | $27,593 |
| 2022* | $48,699 | $28,672 |
| 2023* | $49,624 | $29,793 |
| 2024* | $50,567 | $30,958 |
| 2025* | $51,528 | $32,169 |