| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,090 | $28,211 |
| 2016 | $53,790 | $28,157 |
| 2017 | $54,780 | $31,206 |
| 2018 | $54,780 | $28,567 |
| 2019 | $56,800 | $30,355 |
| 2020 | $57,858 | $31,413 |
| 2021* | $58,923 | $32,509 |
| 2022* | $60,007 | $33,644 |
| 2023* | $61,111 | $34,818 |
| 2024* | $62,235 | $36,033 |
| 2025* | $63,380 | $37,291 |
