Year and month

Nicolas Raoul <nicolas.raoul@gmail.com>

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2012 5 6 3 0 1 0 0 0 0 0 0 0
2013 2 0 0 0 0 0 0 0 0 0 0 0
2016 0 0 0 1 0 0 0 0 0 0 0 0