| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,320 | $27,310 |
| 2016 | $53,900 | $26,342 |
| 2017 | $55,830 | $27,275 |
| 2018 | $55,830 | $25,023 |
| 2019 | $59,232 | $21,590 |
| 2020 | $61,042 | $23,400 |
| 2021* | $62,910 | $22,572 |
| 2022* | $64,835 | $21,773 |
| 2023* | $66,819 | $21,002 |
| 2024* | $68,864 | $20,258 |
| 2025* | $70,971 | $19,541 |