| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $64,800 | $26,399 |
| 2016 | $67,290 | $26,626 |
| 2017 | $69,860 | $27,523 |
| 2018 | $69,860 | $24,752 |
| 2019 | $75,015 | $26,243 |
| 2020 | $77,580 | $28,808 |
| 2021* | $80,544 | $29,779 |
| 2022* | $83,620 | $30,782 |
| 2023* | $86,815 | $31,820 |
| 2024* | $90,131 | $32,892 |
| 2025* | $93,574 | $34,001 |