condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 1.045115 0.0 2.09023 12 h after light 1.15517 0.0 2.31034 2 h after dark 1.041855 0.0 2.08371 4 h after dark 0.0 0.0 0.0 8 h after dark 1.138255 0.0 2.27651 12 h after dark 1.080245 0.0 2.16049