condition mean min max 2 h after light 0.8837943333333333 0.574226 1.37558 6 h after light 0.6637918333333334 0.395459 1.14665 10 h after light 0.4794175 0.244235 0.913741 14 h after light 0.28272579999999997 0.0 0.551163 18 h after light 0.3433343333333333 0.177559 0.553993 2 h after dark 0.489713 0.155305 0.819889