| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $46,089 | $31,367 |
| 2016 | $46,568 | $31,664 |
| 2017 | $48,876 | $31,691 |
| 2018 | $48,876 | $30,130 |
| 2019 | $52,300 | $31,090 |
| 2020 | $55,091 | $33,881 |
| 2021* | $57,824 | $34,203 |
| 2022* | $60,692 | $34,528 |
| 2023* | $63,702 | $34,856 |
| 2024* | $66,861 | $35,187 |
| 2025* | $70,178 | $35,521 |