| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $31,608 | $20,861 |
| 2016 | $32,712 | $21,068 |
| 2017 | $34,186 | $22,234 |
| 2018 | $34,186 | $21,369 |
| 2019 | $38,600 | $24,597 |
| 2020 | $39,460 | $25,457 |
| 2021* | $40,837 | $26,348 |
| 2022* | $42,262 | $27,270 |
| 2023* | $43,737 | $28,225 |
| 2024* | $45,264 | $29,212 |
| 2025* | $46,843 | $30,235 |
