condition mean min max 4 h after light 8.3963965 7.394279 9.398514 8 h after light 10.34253 8.384274 12.300786 12 h after light 9.552441 9.552441 9.552441 4 h after dark 10.977503500000001 10.469719 11.485288 8 h after dark 9.164192 8.775943 9.552441 12 h after dark 7.179433 7.179433 7.179433