| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $50,946 | $32,523 |
| 2016 | $52,838 | $32,574 |
| 2017 | $54,750 | $34,221 |
| 2018 | $54,750 | $32,169 |
| 2019 | $58,040 | $30,835 |
| 2020 | $58,270 | $31,065 |
| 2021* | $60,379 | $31,115 |
| 2022* | $62,565 | $31,164 |
| 2023* | $64,830 | $31,214 |
| 2024* | $67,177 | $31,264 |
| 2025* | $69,609 | $31,314 |