Question: What was the average value in 2005 when 2008 is 61837716, and a 2006 is more than 57126389?
SQL: SELECT AVG("2005") FROM "2-13823555-1" WHERE "2008" = 61837716.0 AND "2006" > 57126389.0;

Question: What is the lowest value in 2007 when 2009 is 42014178 and 2008 is over 61837716?
SQL: SELECT MIN("2007") FROM "2-13823555-1" WHERE "2009" = 42014178.0 AND "2008" > 61837716.0;

Question: What is the highest value in 2011 with less than 5049 in 2006 and less than 1380935 in 2008?
SQL: SELECT MAX("2011") FROM "2-13823555-1" WHERE "2006" < 5049.0 AND "2008" < 1380935.0;

Question: What was the total in 2009 for years of river vessels when 2008 was more than 8030 and 2007 was more than 1411414?
SQL: SELECT COUNT("2009") FROM "2-13823555-1" WHERE "2007" > 1411414.0 AND "Years" = 'river vessels' AND "2008" > 8030.0;