condition mean min max 2 h after light 0.20900933333333332 0.0 0.798272 6 h after light 0.38899833333333333 0.0 0.966791 10 h after light 0.30088666666666664 0.152453 0.40491 14 h after light 0.300146 0.0 0.599716 18 h after light 0.37827665 0.0965999 0.947249 2 h after dark 1.3895175 0.351001 4.44845