Hey Garry, I find it varies quite a bit
I went 3 days in New Cal and only lost 1 lure to line breakage, but we didn't catch a lot of fish
In 6 days in Fiji I lost 5 lures, but would probably have only lost 2 if I had realised earlier there was a chip in one of my guides, causing the line to fray and break....the terrain there was pretty friendly, gently sloping solid reef
At Bugatti I went 4 days without losing any lures, then lost 3 in one day!
At Bligh Reef I think I only lost 2 poppers, but lost a heap of light tackle lures fishing the shallows
It really depends on how nasty the terrain you are fishing is, coupled with how many fish you are catching and how big they are.....lots of strikes from big fish in nasty territory could equal a lot of lost lures if you are unlucky!
I have actually been pretty surprised over time with how few lures I have lost...it