| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $60,206 | $38,105 |
| 2016 | $62,277 | $37,230 |
| 2017 | $65,376 | $38,576 |
| 2018 | $65,376 | $38,674 |
| 2019 | $70,092 | $40,134 |
| 2020 | $71,929 | $41,971 |
| 2021* | $74,403 | $43,490 |
| 2022* | $76,963 | $45,065 |
| 2023* | $79,610 | $46,696 |
| 2024* | $82,349 | $48,386 |
| 2025* | $85,182 | $50,138 |