| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2014 | N/A | N/A |
| 2015 | $31,011 | $25,958 |
| 2016 | $32,575 | $27,137 |
| 2017 | $33,376 | $28,152 |
| 2018 | $33,376 | $27,583 |
| 2019 | $37,475 | $31,678 |
| 2020* | $38,880 | $32,989 |
| 2021* | $40,338 | $34,355 |
| 2022* | $41,851 | $35,778 |
| 2023* | $43,420 | $37,259 |
| 2024* | $45,049 | $38,801 |
