Best aircraft for drug trafficking

The Paraguayan authorities quoted last week that 85% of trafficking activities originate from Bolivia, and la avioneta suprema for this purpose is the Cessna 206. It's not a surprise as over 40 were sold to Bolivia from the US and Canada alone last year and a very few have been identified with CP registrations. ¿Dónde puede ser?

C-GXAJ (U20602810) U206F 27.05.14
N49WT (U20602768) U206F 08.01.14
N62AP (U20604252) U206G 15.05.14
N106CL (U20604070) U206G 18.06.14
N200V (U20606213) TU206G 30.12.14
N206FK (U20605695) TU206G 14.10.14
N206PJ (2060469) U206 06.10.14
N211AC (U20601787) U206F 11.07.14
N235BT (U2060958) TU206C 25.06.14
N252AL (U20603612) U206G 28.08.14
N389SC (U2061304) TU206D 15.09.14
N522HA (U2060755) U206B 17.03.14
N717BS (U20604794) TU206G 09.02.15
N756HA (U20604093) U206G 08.01.14
N896TC (20608196) 206H 27.06.14
N1192Q (U20602863) U206F 07.01.15
N1341Q (U20602886) U206F 01.07.14
N1543U (U20602250) U206F 29.07.14
N2100F (U2060300) U206 22.10.14
N3259G (U20606039) U206G 16.06.14
N3906G (U2060906) U206B 25.09.14
N3967G (U2060967) U206C 25.06.14
N4289L (U20602564) U206F 24.11.14
N4571K (U2060464) U206A 01.07.14
N4649F (P2060249) TP206A 27.01.15
N4703F (P2060303) P206A 08.01.14
N4998F (U2060316) U206 23.09.14
N5096V (U2060876) U206B 02.07.14
N5347U (U20605228) U206G 15.05.14
N6494X (U20605922) U206G 30.12.14
N7824G (T20608704) T206H 31.01.14
N8305Q (U20603166) U206F 23.10.14
N9495G (U20601695) U206E 12.06.14
N9624R (U20606907) TU206G 14.11.14
N9642G (U20601842) U206F 08.09.14
N9959M (U20604609) U206G 04.09.14
N28897 (U20603957) U206G 07.11.14
N33181 (U20602656) U206F 18.03.14
N35593 (U20602732) U206F 08.12.14
N60755 (U20602043) TU206F 31.10.14