Blarg. Ok, this looks kinda weird so let me explain. I didn't give the Center Game or the Bishop Opening any percentile because i never use them. But they are there and you need to be aware of them. I only use the king's gambit against opponents that seem like they don't know much about openings. The king's gambit is very sharp, and that also means it's a good one to study if you want to get good at it (one either side).
One other thing; notice that I have the Wayward Queen Attack in blue (I like to call it the terrorist attack). That's because it's unsound. But it's actually very interesting to look at so by all means take a look at it if you don't already know why it's unsound.
2. Nf3 (95%)
2. f4 The King's Gambit (5%)
2. d4 The Center Game (0%)
2. Bc4 The Bishop Opening (0%)
2. Qh5? The Terrorist Attack (0%)