| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $61,569 | $36,369 |
| 2016 | $63,410 | $39,980 |
| 2017 | $65,426 | $42,809 |
| 2018 | $65,426 | $41,062 |
| 2019 | $70,999 | $39,890 |
| 2020 | $72,033 | $40,924 |
| 2021* | $74,187 | $41,984 |
| 2022* | $76,405 | $43,071 |
| 2023* | $78,689 | $44,187 |
| 2024* | $81,042 | $45,331 |
| 2025* | $83,465 | $46,505 |