Unit Steps

A token starts at position $x_0 = 0$ on the number line and makes 12 moves. At each move it steps exactly one unit to the right or one unit to the left, so $|x_i - x_{i-1}| = 1$ for every $1 \le i \le 12$. If the token ends at $x_{12} = 2$, how many different move sequences are possible? (Two sequences are different if some move differs.)