Table:
province and territory
total crime severity index
violent crime severity index
non-violent crime severity index

index
percent change 2015 to 2016
percent change 2006 to 2016
index
percent change 2015 to 2016
index
percent change 2015 to 2016

newfoundland and labrador
69.3
6
-5
72.6
8
68.0
4

prince edward island
48.5
-3
-32
35.1
-16
53.3
1

nova scotia
61.2
-3
-39
68.3
-3
58.5
-2

new brunswick
61.7
-2
-17
63.2
5
61.0
-4

quebec
54.7
-3
-40
64.7
-2
51.0
-3

ontario
52.7
4
-33
63.6
7
48.6
3

manitoba
114.4
8
-27
152.7
10
100.3
7

saskatchewan
148.8
9
-13
146.1
7
149.5
9

alberta
102.5
-1
-11
89.9
-8
106.9
1

british columbia
93.6
-1
-33
74.9
-10
100.3
2

yukon
183.9
0
2
229.1
9
167.0
-4

northwest territories
291.7
-9
-8
332.1
-9
276.4
-9

nunavut
286.4
4
2
407.7
5
241.6
4

canada
71.0
1
-29
75.3
0
69.3
2

Statement: one of the seven provinces and territories which reported decreases were northwest territories in their crime severity index.
Question: comparing to 2015, how many percentage point has northwest territories decreased in their crime severity index (csi) in 2016?
Answer: [9]