condition mean min max 0 h after light 0.816959 0.657353 0.976565 4 h after light 1.8183099999999999 1.14994 2.48668 8 h after light 1.2519035 0.889217 1.61459 4 h after dark 1.144725 1.10599 1.18346 8 h after dark 0.2430985 0.23584 0.250357 12 h after dark 0.6759835 0.582641 0.769326