condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0729495 0.0 0.145899 8 h after light 0.11085924999999999 0.0753165 0.146402 4 h after dark 0.181954 0.145908 0.218 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0369449 0.0 0.0738898