How many hands before you classify villian as a TAG?

[Game_On]

I'm a party 10 tabler so I rely pretty heavily on stats since I'm going to miss a lot of hands villian showsdown with others...(notes)

Often I'll see a player with 17/10 type stats and think hes a TAG but my data is limited to only 1xx hands (sometimes a lil less, sometimes a lil more) so I end up making incorrect folds like AQo to his raise only to be shown that he raised in EP with QJs or KJo etc. This also applies to postflop..(ie getting 3betted on a flop thinkng my kicker/hand is no longer good)

So how many hands do you think are necessary to classify someone as a TAG?

Oh yeah one more thing....I see this "FWIW" on the forum alot....anyone mind telling me what it stands for? thx