I had a feeling that cargo demand to/from Brazil in GW2 was being underestimated with respect to passenger demand, so I made a little research to confirm my suspects.
I've found this document from the Brazilian airport authority, INFRAERO (
http://www4.infraero.gov.br/media/551857/final.pdf) which has the ranking for passenger movement (pages 11-12) and cargo movement (pages 13-14) in 65 of the Brazilian airports in 2009. I compared the figures of the report with AWS figures of GW2 (which is in 2010, so past year's stats are of 2009) and have found that:
-> In real life, the total pax movement in the researched airports was of 98.660 M in 2009 (1.897 M pax/week); In AWS, the 4 Brazilian airlines transported 190.715 M passengers (3.668 M pax/week) in the same year. Considering that 85% of the pax transported in the country were transported by Brazilian airlines, it gives an estimate of 224.371 M pax transported in 2009 in AWS (4.315 pax/week), which gives us a AWS/RL ratio of 2,274;
-> Likewise, the total cargo movement in the researched airports was of 1.417.387 tons in 2009 (27.257 tons/week); In AWS, the 4 Brazilian airlines transported 1.371.302 tons (26.301 tons/week) in the same year. Considering that 90% of the cargo transported in the country were transported by Brazilian airlines (I give a higher estimate on this because domestic demand is bigger in total), it gives an estimate of 1.523.669 tons of cargo transported in 2009 in AWS (29.301 tons/week), which gives us a AWS/RL ratio of only 1,138.
So, comparing AWS/RL ratios for cargo and pax in Brazil, we can clearly see that cargo demand is underestimated with respect to pax movement, which confirms my suspects.
Besides, see the percentage of total cargo travelled in from the 3 top airports, according to INFRAERO's report (page 13):
1) SBGR - 31,12%
2) SBKP(!) - 18,61%
3) SBEG(!!) - 11,31%
These 3 airports are responsible for more than 60% of total cargo travelled inn Brazil!
So please review cargo figures for Brazil because it's not so poor of a country!