How many hands/hours = long run?

[osucbj04]

How many hands and/or hours played would you guys consider to be long term? I've been playing poker for a bit and am winning (200/400nl) but I'm curious to see if I can clasify this as a pattern or streak. I played a lot of poker as a break even player and now I'm winning, but again I don't know if I can contribute it to a streak or pattern.

Any advice would be great! Thanks!