| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $26,797 | $22,782 |
| 2016 | $37,407 | $33,982 |
| 2017 | $37,991 | $34,056 |
| 2018 | $37,991 | $33,583 |
| 2019 | $36,691 | $33,248 |
| 2020 | $39,211 | $35,768 |
| 2021* | $39,823 | $35,847 |
| 2022* | $40,444 | $35,926 |
| 2023* | $41,075 | $36,005 |
| 2024* | $41,716 | $36,084 |
| 2025* | $42,366 | $36,163 |