Help with scoring using animate cc

[armstr38]

This is my code, which changes by frame, I need to do a scoring system, but when I used the following code to add a score it works fine for the first 2 frames then doubles and by the end it's like 229. Thank you for any help.

Score;

1. var score = 0;
2.  
3. function scoreIt(); {
4. score += 1;
5. }

Frame by frame;

1. this.stop();
2.  
3. this.ans1.addEventListener("click", fl_MouseClickHandler.bind(this));
4.  
5. function fl_MouseClickHandler() {
6. this.rocket2.play();
7. this.rocket1.stop();
8. this.rocket3.stop();
9. this.next.mouseEnabled = true;
10. this.ans2.mouseEnabled = false;
11. this.ans3.mouseEnabled = false;
12.  
13. this.ans2.answer2.color = ("#00ff00");
14. this.ans1.answer1.color = ("#cd0000");
15. this.ans3.answer3.color = ("#cd0000");
16. }
17.  
18. this.ans2.addEventListener("click", f2_MouseClickHandler.bind(this));
19.  
20. function f2_MouseClickHandler() {
21. this.rocket1.play();
22. this.rocket2.stop();
23. this.rocket3.stop();
24. this.next.mouseEnabled = true;
25. this.ans1.mouseEnabled = false;
26. this.ans3.mouseEnabled = false;
27.  
28. this.ans2.answer2.color = ("#00ff00");
29. this.ans1.answer1.color = ("#cd0000");
30. this.ans3.answer3.color = ("#cd0000");
31.  
32. scoreIt();
33. }
34.  
35. this.ans3.addEventListener("click", f3_MouseClickHandler.bind(this));
36.  
37. function f3_MouseClickHandler() {
38. this.rocket3.play();
39. this.rocket2.stop();
40. this.rocket1.stop();
41. this.next.mouseEnabled = true;
42. this.ans2.mouseEnabled = false;
43. this.ans1.mouseEnabled = false;
44.  
45. this.ans2.answer2.color = ("#00ff00");
46. this.ans1.answer1.color = ("#cd0000");
47. this.ans3.answer3.color = ("#cd0000");
48. }