Whenever my health allows me to write a hub, I write a hub (so many unpublished hubs waiting to be written). When my health does not allow me to write a hub, I answer questions, LOL. This is because answering questions is not as mentally taxing as writing a hub. So I am always writing... either answering questions here or else responding to my friends in Facebook.
But I believe you are talking about writing hubs. Honestly, I was targeting one hub a day but looking at my records, I would be happy with 15 hubs a month. Looks like I can't even achieve that!