pref,year,x1,x2,y
1,2006,93 ,2812 ,126 
2,2006,393 ,2438 ,309 
3,2006,101 ,3039 ,318 
4,2006,399 ,3144 ,415 
5,2006,147 ,2449 ,453 
6,2006,518 ,2922 ,424 
7,2006,170 ,3215 ,151 
8,2006,336 ,3240 ,74 
9,2006,696 ,3318 ,72 
10,2006,504 ,3361 ,62 
11,2006,384 ,3347 ,199 
12,2006,487 ,3414 ,314 
13,2006,1428 ,4784 ,232 
14,2006,534 ,3633 ,22 
15,2006,190 ,3236 ,282 
16,2006,282 ,3117 ,453 
17,2006,384 ,3341 ,430 
18,2006,181 ,3481 ,286 
19,2006,565 ,3411 ,273 
20,2006,515 ,3065 ,198 
21,2006,518 ,3436 ,94 
22,2006,463 ,3669 ,247 
23,2006,774 ,3564 ,322 
24,2006,365 ,3515 ,309 
25,2006,168 ,3676 ,62 
26,2006,606 ,3098 ,48 
27,2006,701 ,3303 ,446 
28,2006,453 ,3270 ,281 
29,2006,499 ,3132 ,398 
30,2006,167 ,2625 ,46 
31,2006,597 ,2816 ,261 
32,2006,217 ,2841 ,466 
33,2006,199 ,3120 ,355 
34,2006,632 ,3109 ,446 
35,2006,369 ,2983 ,407 
36,2006,447 ,3150 ,328 
37,2006,187 ,2823 ,47 
38,2006,468 ,2951 ,396 
39,2006,206 ,2797 ,232 
40,2006,628 ,3065 ,96 
41,2006,546 ,2674 ,6 
42,2006,380 ,2485 ,311 
43,2006,655 ,2739 ,115 
44,2006,552 ,3084 ,202 
45,2006,489 ,2793 ,473 
46,2006,142 ,2353 ,345 
47,2006,452 ,2554 ,219 
1,2007,83 ,2678 ,152 
2,2007,99 ,2402 ,337 
3,2007,97 ,2669 ,345 
4,2007,249 ,2725 ,445 
5,2007,88 ,2434 ,472 
6,2007,106 ,2619 ,453 
7,2007,112 ,2860 ,181 
8,2007,135 ,2986 ,108 
9,2007,202 ,3224 ,89 
10,2007,149 ,3060 ,82 
11,2007,334 ,2955 ,219 
12,2007,291 ,3297 ,331 
13,2007,1259 ,4322 ,257 
14,2007,531 ,3243 ,56 
15,2007,176 ,2838 ,304 
16,2007,189 ,3083 ,468 
17,2007,171 ,2949 ,459 
18,2007,155 ,2983 ,315 
19,2007,118 ,2916 ,303 
20,2007,109 ,3032 ,221 
21,2007,120 ,2951 ,117 
22,2007,209 ,3328 ,268 
23,2007,285 ,3440 ,343 
24,2007,115 ,3094 ,329 
25,2007,133 ,3338 ,85 
26,2007,335 ,3008 ,77 
27,2007,620 ,3183 ,476 
28,2007,295 ,2862 ,299 
29,2007,263 ,2851 ,423 
30,2007,152 ,2574 ,70 
31,2007,152 ,2664 ,279 
32,2007,77 ,2579 ,497 
33,2007,143 ,2747 ,388 
34,2007,247 ,2967 ,479 
35,2007,119 ,2822 ,425 
36,2007,152 ,2717 ,360 
37,2007,158 ,2768 ,66 
38,2007,148 ,2462 ,427 
39,2007,183 ,2405 ,249 
40,2007,301 ,2720 ,118 
41,2007,79 ,2560 ,31 
42,2007,202 ,2330 ,336 
43,2007,187 ,2571 ,136 
44,2007,97 ,2803 ,229 
45,2007,80 ,2655 ,507 
46,2007,120 ,2342 ,373 
47,2007,174 ,2110 ,235