condition mean min max 0 h after light 3.40215 2.79883 4.00547 4 h after light 0.3942135 0.0 0.788427 8 h after light 0.197787 0.0 0.395574 4 h after dark 2.9544650000000003 1.17806 4.73087 8 h after dark 0.78757 0.0 1.57514 12 h after dark 1.775085 1.59718 1.95299