Better options would be "x - y times a week". I'd say may be 6-10 times a week.<p>Additionally, after a while you develop a rep or a friend develops a rep for saying he is somewhere but he isn't really there(yet)...how about a service that texts another friend "blah is really at 48th and 3rd as of 3:04pm". Basically a service that vouches for my location.
What are these percentages <i>of?</i><p>Regardless, the only time I send a message like this is if I'm meeting someone and they're late. And even then I never ask where they are, just for an ETA.
How are percentages supposed to reflect frequency?<p>Consider re-wording your question to something like:<p>What percentage of your SMS messages are related to questions like "Where are you?"