| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $38,200 | $21,453 |
| 2016 | $39,006 | $20,041 |
| 2017 | $40,206 | $20,755 |
| 2018 | $40,206 | $19,812 |
| 2019 | $42,290 | $20,076 |
| 2020 | $43,000 | $20,786 |
| 2021* | $43,907 | $21,062 |
| 2022* | $44,834 | $21,343 |
| 2023* | $45,780 | $21,626 |
| 2024* | $46,746 | $21,914 |
| 2025* | $47,732 | $22,206 |
