Time spent in Mitosis and Interphase?

I just need to get my facts right. I read that 90% of the time cells are going through interphase , and 10% of the time they are going through mitosis. Is this right? But how does this differ between plant and animal cells? My teacher said that plant cells go through a longer mitotic phase than animals. That would mean that interphase in plants is shorter. If THAT'S the case, how long DO plant + animal cells spend in interphase and mitosis? o _ o;; Please help!