Mike Bloomberg is happy as a pig in excrement to tell the works that his 1000 green taxis have booked "nearly " 300000 trips in three months. Thus say the Daily News and the Village Voice. 300 trips per taxi over 3 months. How many trips do yellow cabs complete in a month? Roughly 1000 a month each. For argument's sake let' s say these 300000 trips were accomplished by these green cabs in one month. That is less than a third of what the yellow taxis do. My educated guess though is they do quite: more than ten trips a day. They're off the meter off the books and off the tax rolls.