Now WAAAAY back in the 60s and 70s when I was a young hippie, our pot was leaves, stems, seeds and a bit of bud- basically the whole plant minus the roots (one time the kilo had the roots too!). Now, stems, fan leaves, and seeds have way less THC than buds. So here they are now, comparing the whole plant that we got in the 60s and 70s, with the well manicured buds of 07! OF COURSE there is a big jump in the percentage of THC- buds simply have more THC than leaves, stems and seeds! Our cannabis of today MAY be a bit higher in THC due to better care and careful breeding, but give me a break- they are comparing apples and oranges!- Granny