condition mean min max 0 h after light 0.4782995 0.0 0.956599 4 h after light 0.2353685 0.0 0.470737 8 h after light 0.0 0.0 0.0 4 h after dark 0.235384 0.0 0.470768 8 h after dark 0.2351135 0.0 0.470227 12 h after dark 1.1712435 0.476807 1.86568