Year and month

Moritz Warning <moritzwarning@web.de>

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2019 1 4 0 0 0 0 1 1 0 0 0 0
2020 1 0 0 0 0 0 0 0 1 0 0 0
2022 0 0 0 0 0 0 0 0 0 0 1 0