Year and month

Andreas Enge <andreas.enge@inria.fr>

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2015 1 0 0 0 0 0 0 0 0 0 0 0
2017 0 0 1 0 0 0 0 0 0 1 0 0
2019 0 2 0 0 0 0 1 0 0 0 0 0
2020 0 0 0 0 1 0 0 0 1 0 0 0
2021 0 0 1 0 0 0 0 1 0 0 0 1
2022 1 0 0 1 0 0 0 0 0 1 0 0
2023 0 0 0 0 0 0 1 0 0 0 0 0