Table:
year
total crime
violent crime
property crime
other criminal code offences

number
rate
percent change in rate from previous year
number
rate
percent change in rate from previous year
number
rate
percent change in rate from previous year
number
rate
percent change in rate from previous year

2008
169,747
6,537
-3
49,130
1,892
-3
88,878
3,423
-4
31,739
1,222
-2

2009
167,103
6,515
0
48,030
1,873
-1
88,309
3,443
1
30,764
1,199
-2

2010
153,728
6,078
-7
46,056
1,821
-3
78,772
3,115
-10
28,900
1,143
-5

2011
136,494
5,486
-10
43,004
1,728
-5
67,230
2,702
-13
26,260
1,055
-8

2012
126,061
5,165
-6
39,560
1,621
-6
61,371
2,515
-7
25,130
1,030
-2

2013
105,084
4,392
-15
33,995
1,421
-12
49,562
2,071
-18
21,527
900
-13

2014
94,782
4,016
-9
30,014
1,272
-10
44,799
1,898
-8
19,969
846
-6

2015
92,770
3,946
-2
29,540
1,257
-1
43,965
1,870
-1
19,265
819
-3

2016
89,118
3,767
-5
30,247
1,279
2
39,995
1,691
-10
18,876
798
-3

2017r
89,202
3,766
0
32,172
1,358
6
38,787
1,637
-3
18,243
770
-3

2018
80,189
3,372
-10
31,463
1,323
-3
32,702
1,375
-16
16,024
674
-13

percent change 2008 to 2018
..
-48
..
..
-30
..
..
-60
..
..
-45
..

Statement: in 2018, the youth crime rate dropped 10%, marking the largest decrease in the youth crime rate since 2013.
Question: which year made the largest decrease in the youth crime rate since 2013?
Answer: [2018.0]