It's a binary question. 0 for no, 1 for yes. The answer is 8.
Really, you can have any holiday you want, whether or not any one else participates/celebrates. I'm sure if you were to put in the effort to set one up, we'd all play along.
Holidays usually are more evolutions, rather than "Hey, let's make this a holiday." But don't tell Ol' Chumbucket and Cap'n Slappy that.