| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,030 | $34,429 |
| 2016 | $54,850 | $34,641 |
| 2017 | $56,446 | $35,877 |
| 2018 | $56,446 | $36,539 |
| 2019 | $60,038 | $37,837 |
| 2020 | $61,449 | $39,248 |
| 2021* | $63,237 | $40,641 |
| 2022* | $65,077 | $42,084 |
| 2023* | $66,971 | $43,578 |
| 2024* | $68,920 | $45,125 |
| 2025* | $70,926 | $46,727 |