condition mean min max 3 h after light 3.005869 0.943768 5.14597 7 h after light 2.1713210833333334 0.931205 3.9043 11 h after light 2.5555458333333334 0.90055 4.72152 2 h after dark 4.548298333333333 1.3089 6.52045 6 h after dark 3.30485675 0.940201 5.53535 10 h after dark 3.5678135 0.942392 6.89187