Year and month

SC <lalocas@protonmail.com>

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2021 0 0 0 1 0 0 1 1 1 0 0 0
2022 1 0 0 2 0 0 0 0 0 0 1 1
2023 2 1 0 0 0 0 1 0 0 0 0 0