| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $19,000 | $12,064 |
| 2016 | $22,250 | $14,516 |
| 2017 | $22,250 | $18,942 |
| 2018 | $22,250 | $15,915 |
| 2019 | $23,250 | $15,957 |
| 2020 | $24,750 | $17,457 |
| 2021* | $25,861 | $19,098 |
| 2022* | $27,022 | $20,893 |
| 2023* | $28,236 | $22,857 |
| 2024* | $29,504 | $25,006 |
| 2025* | $30,828 | $27,356 |