it is easy to get hbv why didn't you make vaccine?the only countries where hbv is very very low are advanced/rich countries with mandatory vaccine at birth
if your country don t make these vaccines at birth (probably so since you are not immune) you must make vaccine to be sure you'll never get hbv in the future, having all negative is not good in 2010....having hbsab>10miu/ml which is immunity is much better
five items all negative...
test for HBsAb. If you have more than 10 IU/ml, you are immune for life as far as Hep B goes.