What do these stats mean?

They are your stats for how many hands did you see pre-flop, how many post-flop, etc.

Of the 122 hands dealt while you were at the table,

Street Saw Saw/Total
Flop 35 29% You saw 35 flops which equals 29% (pretty loose, by most poker standards)

Turn 25 20% You saw the turn 25 times for a total of 20% of the hand that have been dealt. (which is 122)

River 22 18% You saw the river 22 times for at total of 18% of the hands taht were dealt...and so on...
Showdown19 16%

Street Won Won/Saw Won/Total
Pre-flop 6 5% 5%
Flop 4 11% 3%
Turn 1 4% 1%
River 2 9% 2%
Showdown 12 63% 10%

The above stats show what street you were involved when you won hands...

You won 6 hands pre-flopp which is 5% of the total hands dealt.

You won 4 on the flop which is 11% of the flops you saw, and 3% of the total hands dealt...And so on...Was this the explanation you were looking for?