reworded and renamed vars in stat.py
reworded and renamed vars in stat.py

moskytw/zipcodetw,linpan/zipcodetw,linpan/zipcodetw,simonfork/zipcodetw,moskytw/zipcodetw,moskytw/zipcodetw,linpan/zipcodetw,simonfork/zipcodetw,simonfork/zipcodetw