condition mean min max 4 h after light 2.895172 2.778486 3.105109 8 h after light 2.149507 1.4916690000000001 2.5466450000000003 12 h after light 1.4527503333333334 1.3721 1.525018 16 h after light 2.8165206666666665 2.3579630000000003 3.3763589999999994 4 h after dark 3.4745713333333335 2.45902 5.320164 8 h after dark 1.9538093333333333 1.5124389999999999 2.351207