| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $35,880 | $21,716 |
| 2016 | $36,130 | $20,880 |
| 2017 | $39,528 | $23,654 |
| 2018 | $39,528 | $27,486 |
| 2019 | $42,355 | $22,346 |
| 2020 | $43,802 | $23,793 |
| 2021* | $45,300 | $25,335 |
| 2022* | $46,849 | $26,976 |
| 2023* | $48,452 | $28,725 |
| 2024* | $50,109 | $30,586 |
| 2025* | $51,822 | $32,568 |
