condition mean min max 0 h after light 2.729725 2.19204 3.26741 2 h after light 2.380905 2.11148 2.65033 4 h after light 2.73186 2.14858 3.31514 8 h after light 2.258345 1.65431 2.86238 12 h after light 17.31765 16.9379 17.6974 2 h after dark 5.7653300000000005 5.20787 6.32279 4 h after dark 5.394965 4.79354 5.99639 8 h after dark 6.01843 5.30403 6.73283 12 h after dark 3.927315 3.89482 3.95981