In terms of reference, it is correct to affirm that
"14.7 percent share" (lines 10-11) - refers to the energy generated by biofuels and hydro-energy.
"10.4 billion liters" (line 27) - refers to the consumption of hydrous ethanol in 2006.
"4 percent" (line 31) - refers to the increase in gasoline consumption in 2007.
"418,000 bpd" (line 39) - refers to amount of barrels of gasoline produced per day in Brazil.
"44.9 percent" (line 47) - refers to the percentage that renewable energy sources represented in 2006.