if i have data like this, and want to summarize it based on entity and account category how do i do that?
From this:
| entity | account # | account category | 2022 | 2023 | 2024 | 2025 |
| canada | 1000 | cash | 100 | 200 | 100 | 400 |
| canada | 1001 | cash | | | | |
| us | 1000 | cash | 400 | 200 | 200 | 200 |
| us | 1005 | cash | 300 | 200 | 200 | 200 |
| australia | 100 | cash | 100 | | | 200 |
| australia | 400 | cash | 100 | | | |
| nz | 100 | cash | | 100 | | 100 |
| nz | 400 | cash | | | | |
to this
| entity | account category | 2022 | 2023 | 2024 | 2025 |
| canada | cash | 100 | 200 | 100 | 400 |
| us | cash | 700 | 400 | 400 | 400 |
| australia | cash | 200 | | | 200 |
| na | cash | | 100 | | 100 |