What is the chance of catching each level of Magikarp with the Old Rod in Platinum?

Question

I already know the levels range from 3 to 15. I want something like this.
Level 3: some percent
Level 4: some percent
Level 5: some percent
Level 6: some percent
Level 7: some percent
Level 8: some percent
Level 9: some percent
Level 10: some percent
Level 11: some percent
Level 12: some percent
Level 13: some percent
Level 14: some percent
Level 15: some percent

Comments

I edited the question title to make it more clear, as the original made it seem like you were asking for the levels that Magikarp can be encountered at in Platinum.

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They're all the same, I'm pretty sure

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If you use a super rod in the Resort Area, then there's a 3.19% chance of finding a level 50 Magikarp, but only a 0.01% chance of finding a level 100 Magikarp. I'm pretty sure a similar pattern applies to all fishing encounter tables.

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once, i had a pressure weavile and got a level 90 magikarp. it is still on my diamond, though.

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Where specifically?

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I'm pretty sure it's the same everywhere. If it's different then please tell me.