| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $32,410 | $21,880 |
| 2016 | $33,360 | $22,940 |
| 2017 | $34,370 | $23,781 |
| 2018 | $34,370 | $22,030 |
| 2019 | $36,335 | $22,124 |
| 2020 | $37,290 | $23,079 |
| 2021* | $38,383 | $23,926 |
| 2022* | $39,507 | $24,804 |
| 2023* | $40,665 | $25,714 |
| 2024* | $41,856 | $26,658 |
| 2025* | $43,083 | $27,636 |
