Average turns for junk sprites

Assumes the base drop rate is 5*[# killed since last drop] % affected by +item%.
The numbers below are 3+4*[average # of turns to get one item].

+item%	turns to finish
0	24.17
50	20.08
100	17.64
150	15.98
200	14.76
250	13.8
300	13.04
350	12.41
400	11.88
450	11.43
500	11.03
550	10.67
600	10.38
650	10.125
700	9.88
750	9.65
800	9.42
850	9.21
900	9
950	8.9
1000	8.8
1050	8.7
1100	8.6