| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $14,851 | $9,664 |
| 2016 | $16,210 | $12,741 |
| 2017 | $16,210 | $10,839 |
| 2018 | $16,210 | $10,952 |
| 2019 | $19,990 | $14,322 |
| 2020 | $21,490 | $15,822 |
| 2021* | $23,102 | $17,479 |
| 2022* | $24,834 | $19,309 |
| 2023* | $26,697 | $21,330 |
| 2024* | $28,699 | $23,563 |
| 2025* | $30,852 | $26,031 |
