[2012-03-04] [5.58]  x b/c March hits
[2013-02-14] [10.9]  x b/c subscribers only
[2013-01-27] [11.52]  ? may have been subscribers only, not sure
[2011-03-31] [12.03]
[2011-02-13] [12.67]
[2011-09-01] [13.21]
[2011-04-24] [13.79]
[2011-03-13] [14.15]
[2011-08-28] [14.54]
[2011-04-10] [14.98]
[2011-03-27] [15.18]
[2011-08-21] [15.61]
[2011-05-15] [15.66]
[2011-01-23] [15.66]
[2011-12-08] [16.16]
[2011-03-24] [16.41]
[2011-03-17] [16.72]
[2011-04-17] [16.94]
[2013-02-28] [17.2]
[2012-03-15] [17.27]
[2011-04-07] [17.39]
[2012-03-11] [17.42]
[2012-10-25] [17.62]
[2012-03-08] [18.06]
[2011-01-20] [18.07]