v1         v2
2017-04-03 09:15:00     35.7       35.4
2017-04-03 09:16:00     28.7       28.5
      ...               ...        ...
2017-04-03 16:29:00     81.7       81.5
2017-04-03 16:30:00     82.7       82.6
      ...               ...        ...
2017-04-04 09:15:00     24.3       24.2
2017-04-04 09:16:00     25.6       25.5
      ...               ...        ...
2017-04-04 16:29:00     67.0       67.2
2017-04-04 16:30:00     70.2       70.6
      ...               ...        ...
2017-04-28 09:15:00     31.7       31.4
2017-04-28 09:16:00     31.5       31.0
      ...               ...        ...
2017-04-28 16:29:00     33.2       33.5
2017-04-28 16:30:00     33.0       33.7

v1         v2
2017-04-03 09:15:00     35.7       35.4
2017-04-03 16:30:00     82.7       82.6
2017-04-04 09:15:00     24.3       24.2
2017-04-04 16:30:00     70.2       70.6
      ...               ...        ...
2017-04-28 09:15:00     31.7       31.4
2017-04-28 16:30:00     33.0       33.7