That's the number of days they were on tour, not the number of shows they played. A lot of sources took that statistic and misquoted it as them having "played over 300 shows in 2001." When you factor in all the days in between shows where they're still on tour, a couple travel days at the beginning/end of each tour, and periods where they had a handful of days between the end of one tour and the start of the next where they probably didn't get to spend much time at home, my most conservative estimate of their touring schedule for '01 would be around 275 days, and that's with me not even knowing what their schedule for rehearsals, video shoots, etc. was, which would likely factor into that number as well.