I get approx 20km/litre, sometimes slightly less, sometimes slightly more. The bike is stock apart from a few cosmetic changes, and although I'm pretty short I'm not that light (I'm not fat, just solid).
According to my calculations (and forgive me if I'm mistaken, I don't work well in Imperial or US measurements) this is approximately 75mpg (the gallons being US-spec gallons). That seems an awful lot compared to what you guys are getting
I do live out in the country, the bike does mostly open-road trips and I'm not that a heavy user of the throttle. The laws here allow for immediate disqualification of anyone travelling more than 30km/h over posted speed limits. The default open/country road speed limit is 100km/h, with some freeway limits set at 110km/h. The first instance or 30km/h over period of disqualification is one month and a hefty fine, the second period or >45-60km/h over is open-ended on both counts at the courts' disgression.
As we live 15-odd kilometres from town I can't really afford to lose my license, riding to the local train station and getting there by 7am on a push bike would be a major PITA. So I take it easy...most of the time.
FWIW I used to get the same economy on my old '98 ZZR600 (the old ZX-6 to you guys), and this was heavier than the Hornet.
My first bike, a 2000 GPX250R (the Ninja 250R) was extremely frugal, I used to get 30km/l (113mpg!!!) and it seemed to go forever on a tank of fuel...just not that fast.