Shocking Service!
Only 6 services running normally (and one of those is a tram) out of 15 listed services. Even for the famously crap train services of Britain, that's pretty bad.
Here's a thought for you, TfL: if you want to increase passenger numbers, try providing a reliable service that people will want to use. Heck, the entirety of Europe can manage it, so it can't be to hard!