Most Common UTI-causing bacteria

We've talked about focusing on a small number of bacteria in our detection system. Here are the most common types of bacteria found to cause urinary tract infections (E. coli causes 90% of infections!). Please note that these numbers are in the U.S., so I'm making the assumption that there are similar causes of infections in Nicaragua.
Here's a graph summarizing the search- with the bacteria, and which tests can be used to identify it. Feel free to edit this post and add more tests as this information is from a couple of sources, so it may not be comprehensive.
 

Bacteria	Test
E. coli (90% of UTIs!)	indole test
Staphylococcus saprophyticus  (10-20% of UTIs)	?
Klebsiella	indole test, citrate test
Enterococci	PYR test?
Citrobacter	Citrate test
Proteus mirabilis	Indole negative and Nitrate reductase positive (no gas bubbles produced) Methyl Red positive and Voges-Proskauer negative Catalase positive and Cytochrome Oxidase negative Phenylalanine Deaminase positive Tryptophan test- negative (-) Urea test- positive Casein test-negative Starch test- negative Hydrogen sulfide test- positive Citrate agar test- positive

 ~Neta