Meanings of reasonably regular in English

Since then I have been a reasonably regular blood donor (having given approximately 20 times).

They were reasonably regular in height and broad enough for two, or even three, persons to go abreast.

I was fed water and food at reasonably regular intervals- alittledried bread, rice, and some kind of slop.

Why: The courts system is complicated and needs reasonably regular rejigging to try and keep it working as efficiently as possible.

Why: Apparently the courts system is complicated and needs reasonably regular rejigging to try and keep it working as efficiently as possible.

While a majority of students attend their lectures on a reasonably regular basis, there seems to be no pattern to attendance levels at lectures.

She scans through the memo, hitting the Page Down button at reasonably regular intervals, occasionally paging back up to pretend to reread some earlier section.