| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $32,000 | $18,099 |
| 2016 | $34,000 | $19,104 |
| 2017 | $36,000 | $20,835 |
| 2018 | $36,000 | $20,188 |
| 2019 | $38,570 | $21,047 |
| 2020 | $39,760 | $22,237 |
| 2021* | $42,098 | $23,471 |
| 2022* | $44,573 | $24,774 |
| 2023* | $47,194 | $26,149 |
| 2024* | $49,969 | $27,600 |
| 2025* | $52,907 | $29,132 |