How are you?

as you can imagine, many times a day especially in the street, people talk to me and i say "How are you?" Maybe ninety-nine percent of the answers are"i'm fine' which is often a bit artificial. or maybe you can say......
* Not so good, didn't sleep well last night.
* Ok...Just!(barely good)
* Not bad (but not really good)
* Can't complain
* Fair to average
* Pretty good. What about you?
* You don't want to know about it!
* Awaful, there was so much traffic coming in this morning.
* Don't ask!
* Been better.
* Really good actually.
* i'm still breathing! (irony)
* Absolutely fantastic! (a joke)
* Never been better
* Same as usual
* Terrific