[citation needed]

Anyone can make a graph, but can we get some hard evidence to back it up, please? It helps our credibility.

According to the person who gathered this, "Other" just refers to anything that doesn't fit in the other categories. Says it's usually just stuff like "Hi there" or "good morning". They also say they gathered this data themselves, not with any sort of algorithm.

It roughly matches with what I've seen myself, but I'm not feeling a hundred percent on the method. Guess I'd have to see the tweets they documented for myself.