condition mean min max 3 h after light 1.0318143333333334 0.933273 1.09573 6 h after light 1.155084 0.897366 1.62869 9 h after light 1.0000713333333333 0.793074 1.19133 12 h after light 1.233129 0.774748 1.67975 3 h after dark 1.8501133333333333 1.29504 2.74531 6 h after dark 2.2173233333333333 1.96416 2.43107 9 h after dark 1.523218 0.975984 2.21853 12 h after dark 0.993611 0.899702 1.08752