condition mean min max 4 h after light 1.00491 0.82259 1.18723 8 h after light 1.021874 0.892588 1.15116 12 h after light 1.475345 1.18394 1.76675 4 h after dark 1.4369045 0.905469 1.96834 8 h after dark 2.0504000000000002 1.73479 2.36601 12 h after dark 2.218285 2.20296 2.23361