condition mean min max 4 h after light 3.561905 3.514018 3.641089 8 h after light 2.4054036666666665 1.793827 2.7330229999999998 12 h after light 1.8691333333333333 1.825107 1.9250909999999999 16 h after light 3.6661360000000003 3.022617 4.6151860000000005 4 h after dark 2.986551 2.79276 3.337392 8 h after dark 2.1371243333333334 1.8397580000000002 2.718673