This is shown by the Ryunohige data set in Point 2. We get the following damage ranges:
High Jump - 156~251, 156~163 is very common, so 156 is 1.0 pDIF (1~1.532) :: (1.2256~1.51)
Spirit Jump with Wyvern - 156~297, 156 is not very common in this case probably because we're almost out of the 1.0 pDIF plateau (1~1.813) :: (1.45~1.51)
Soul Jump with Wyvern - 200~341 (1.282~2.081) :: (1.707~1.758)
Soul Jump without Wyvern (accident) - 0~113 (0~.69) :: (~0.23 Ratio)
Jump (96 VIT) - 237~433 (1.107~1.927) :: (1.55~1.6 Ratio)
So we have a 156 base damage weapon (214 for jump assuming fSTR) and unknown level correction. The pDIF values are shown above without the 5% randomizer, then shown converted in to a Ratio range using Motenten's wRatio equations. We don't know the defense of the monster, so this test only shows us the attack bonuses relative to one another. Rather than being an attack bonus, there is also a chance that they are ignoring a variable amount of level correction. That stands yet to be determined.
If I was a betting man, I'd say that High Jump gets a 10% smaller bonus than Spirit Jump, which gets a 10% smaller bonus than Jump, which gets a 10% smaller bonus than Soul Jump.