I had 5 nails in my driverside rear tire over a few months time. I just kept pluggin the holes. Shit was getting out of hand though.
I think that new tires tend to be sticker and the front tires are more capable of throwing up nails and w/e so that they can stick into the rear tires? I dunno, just wasting time during my matlab class...

Evo 8 - 12.3@113 circa 2009 (~330whp)
Now with BB Xona Rotor HTZ FP Red and ~450whp
2018 MSM Civic SI Ktuner TSP stage 1 w/ Honda hacked headunit.