UV27 Time Since Last Worked Never Worked
Q0 : 0.2300614<=x<2.663438
Q1 : 2.663438<=x<3.476791
Q2 : 3.476791<=x<4.636383
Q3 : 4.636383<=x<7.103114
Q4 : 7.103114<=x<43.68159
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