Year and month

Allan Wang <me@allanwang.ca>

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2018 0 0 7 0 2 0 0 0 0 0 11 0
2019 1 1 0 2 0 3 1 1 1 1 0 0
2020 1 1 0 0 0 0 0 0 0 0 0 0