| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $47,818 | $28,948 |
| 2016 | $48,978 | $28,251 |
| 2017 | $50,204 | $29,114 |
| 2018 | $50,204 | $28,211 |
| 2019 | $51,041 | $26,221 |
| 2020 | $51,427 | $26,607 |
| 2021* | $52,286 | $25,966 |
| 2022* | $53,159 | $25,340 |
| 2023* | $54,047 | $24,729 |
| 2024* | $54,949 | $24,133 |
| 2025* | $55,867 | $23,552 |