Since Kano started posting the Monthly Block Statistics in March 2016, the best month we've had for Luck% was April 2017 with 147.47%.  This month is at 140.28% which makes March 2018 the 2nd best month percentage-wise.  I believe 1 more block before the end of this month will make this month the best we've had on Monthly Statistics since March 2016 when the table started!