comprehensive stool analysis

Hello,
I took the Great Plains Lab conprehensive stool analysis and got the results.
I was wondering if someone here can help me understand them.

Bacteriology:
expected/beneficial flora-
4+ bacteroides gragilis group
4+ bifidobacterium spp.
3+ escherichia coli.
lactobacillus- no growth
enterococcus -no growth
2+ clostridium spp.

imbalanced flora-
1+ alpha hemolytic strep
2+ enterobacter cloacae
2+ gamma hemolytic strep
1+ staphylococcus aureus

dysbiotic flora-
3+ citrobacter freundii

Does anyone knows what the numbers on the sides mean(1+,2+)?,and does the bacteria under the beneficial flora list means that these bacteria supposed to be in the intestine?
also, my test showed no yeast isolated and no ova or parasites.
I would really appreciate any help with this bacteria list.

Thank You