| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $51,165 | $28,397 |
| 2016 | $52,595 | $27,945 |
| 2017 | $54,045 | $28,284 |
| 2018 | $54,045 | $27,512 |
| 2019 | $57,885 | $25,919 |
| 2020 | $59,775 | $27,809 |
| 2021* | $61,443 | $27,367 |
| 2022* | $63,157 | $26,932 |
| 2023* | $64,919 | $26,503 |
| 2024* | $66,730 | $26,082 |
| 2025* | $68,592 | $25,667 |
