condition mean min max 4 h after light 3.6804083333333333 3.566464 3.8424660000000004 8 h after light 2.6115893333333333 1.7148290000000002 3.230809 12 h after light 1.750599 1.523074 1.899411 16 h after light 3.6165890000000003 3.3731160000000004 4.066698000000001 4 h after dark 2.972173666666667 2.758099 3.3900300000000003 8 h after dark 1.9156843333333333 1.6940830000000002 2.089873