_id	2014.0	2015.0	2016.0	2017.0	"Var.ass.
17-16"	"Var. % 
16-15"
1	-	-	-	0.0	-2	-100
2	-	8.0	-	-	-1	-50
3	6.0	12.0	4.0	-	-3	-75
4	""	""	""	""		
5	""	""	""	""		
6	""	""	""	""		
7	""	""	""	""		
8	""	""	""	""		
9	""	""	""	""		
10	""	""	""	""		
11	""	""	""	""		
12	""	""	""	""		
13	""	""	""	""		
14	""	""	""	""		
15	""	""	""	""		
16	""	""	""	""		
17	""	""	""	""		
18	""	""	""	""		
19	""	""	""	""		
20	""	""	""	""		
21	""	 	""	""		
22	""	""	""	""		
23	""	""	""	""		
24	""	""	""	""		
25	""	""	""	""		
26	""	""	""	""		
27	""	""	""	""		
28	""	""	""	""		
29	""	""	""	""		
30	""	""	""	""		
31	""	""	""	""