I tried to first group the different dates with the function groupby. I want to group the dates by months for the different years. In a month, I want to find visualize how many times a an order is "Rood", as shown in the picture. How can i do this?

I tried to first group the different dates with the function groupby. I want to group the dates by months for the different years. In a month, I want to find visualize how many times a an order is "Rood", as shown in the picture. How can i do this?
