condition mean min max 4 h after light 7.16221 6.62257 7.70185 8 h after light 5.397695000000001 4.85105 5.94434 12 h after light 5.622574999999999 5.49151 5.75364 4 h after dark 8.039033333333332 7.5385 8.43609 8 h after dark 8.099173333333333 7.73857 8.64457 12 h after dark 6.53832 6.13099 6.99242