I've no idea what you're meaning by midwife days etc, but you would have to be a bit naive to believe any statistics without delving a bit deeper.
Midwives who deliver babies are only a very small part of the greater picture. The majority of midwives actually work in antenatal, postnatal, community, antenatal clinics, specialist midwife roles, 1-1 caseloading, management, fetal medicine - the list is long and few of these midwives will deliver babies, but provide all the other care and input necessary to ensure that you receive an appropriate package of care.
When I worked in Labour ward I would deliver about 200 babies a year, and probably care for 4-5 times that many women in various stages of labour or antenatally. When I worked on Caseload which involved homebirths and caring for vulnerable women, I had about 35 women a year to provide complete care for (to the extent that, aside from scans, they may never have contact with anyone from the hospital but me, from the start to the end of pregnancy). So if you take the midwives who don't deliver babies and add them into the equation, then 28 is probably fairly realistic PER EMPLOYED MIDWIFE. If you took the midwives away from any of the areas where they provide care but don't deliver babies, there would be a mass of threads on here complaining about a lack of care in some other department.
When we work 3 days a week, that usually means 12-14 hour shifts, often without breaks, maybe a coffee or sandwich gulped down between patients or while writing in notes if we're lucky. And the paperwork involved is just ridiculous - we can spend almost as long doing notes and computer work for each patient as we do actually caring for them one to one.
So before launching into another tiresome and antagonistic 'OMG - midwives only deliver 30 babies a year and why are we paying taxes for this' thread, give a bit of credit to the fact that in general, midwives actually do a pretty good job under the restraints imposed by recent government economic policy in regard to the NHS.
I too am getting a bit fed up with the recent threads in which midwives are seen as the enemy.