| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $43,710 | $18,961 |
| 2016 | $44,665 | $20,488 |
| 2017 | $46,080 | $20,312 |
| 2018 | $46,080 | $20,726 |
| 2019 | $48,196 | $21,064 |
| 2020 | $48,916 | $21,784 |
| 2021* | $49,982 | $22,228 |
| 2022* | $51,072 | $22,682 |
| 2023* | $52,185 | $23,145 |
| 2024* | $53,323 | $23,617 |
| 2025* | $54,485 | $24,098 |