TO QUALIFY FOR JURY SERVICE?

ASIDE FROM BEING ON THE ELECTORAL REGISTER, DO YOU HAVE TO HAVE A GOOD CREDIT RATING OR ANY OTHER TYPE OF QUALIFYING ASPECT TO SIT ON A JURY? I HAVE BEEN ON THE VOTERS LIST FOR 30 YEARS AND NEVER BEEN CALLED UP AND MANY OF MY FRIENDS HAVE BEEN CALLED UP ON MORE THAN ONE OCION, HENCE I WONDERED WHAT THE CRITERIA ARE?