data가 바뀌었군요.
172:codesprint kenu$ tail +51838 data/round2-4.csv | head
20130410,2345,U,9,백록1교,통도사휴게소,4052,101.3
20130410,2350,U,9,백록1교,통도사휴게소,4052,84.32
20130410,2355,U,9,백록1교,통도사휴게소,4052,92.91
20130401,0000,D,10,판교임시IC,판교JC경부고속도로점,947,101.87
20130401,0005,D,10,판교임시IC,판교JC경부고속도로점,947,107.69
20130401,0010,D,10,판교임시IC,판교JC경부고속도로점,947,107.69
20130401,0015,D,10,판교임시IC,판교JC경부고속도로점,947,104.7
20130401,0020,D,10,판교임시IC,판교JC경부고속도로점,947,91.93
20130401,0025,D,10,판교임시IC,판교JC경부고속도로점,947,104.7
20130401,0030,D,10,판교임시IC,판교JC경부고속도로점,947,101.87
\
kenuui-Retina-MacBook-Pro:2013_round2_456 kenu$ tail +51838 ./round2-4.csv | head
20130410,2345,U,9,백록1교,통도사휴게소,4052,101.3
20130410,2350,U,9,백록1교,통도사휴게소,4052,84.32
20130410,2355,U,9,백록1교,통도사휴게소,4052,92.91
20130401,0000,D,10,판교임시IC,판교JC경부고속도로점,1047,101.87
20130401,0005,D,10,판교임시IC,판교JC경부고속도로점,1047,107.69
20130401,0010,D,10,판교임시IC,판교JC경부고속도로점,1047,107.69
20130401,0015,D,10,판교임시IC,판교JC경부고속도로점,1047,104.7
20130401,0020,D,10,판교임시IC,판교JC경부고속도로점,1047,91.93
20130401,0025,D,10,판교임시IC,판교JC경부고속도로점,1047,104.7
20130401,0030,D,10,판교임시IC,판교JC경부고속도로점,1047,101.87