| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $19,600 | N/A |
| 2016 | $20,400 | $9,253 |
| 2017 | $22,100 | $9,500 |
| 2018 | $22,100 | $9,484 |
| 2019 | $23,200 | $12,687 |
| 2020 | $23,200 | $12,687 |
| 2021* | $24,147 | $12,856 |
| 2022* | $25,132 | $13,027 |
| 2023* | $26,157 | $13,200 |
| 2024* | $27,224 | $13,376 |
| 2025* | $28,335 | $13,553 |
