Interval estimates of the temporal TL slope (b) using bootstrap samples for each state, using the CX model (cx) and the ordinary least-squares (ols) regression separately.

b and b_se are defined in S30 Table. b_boot_withinstate_lower (or upper) gives respectively the 95% lower (or upper) bound of b estimated from 500 samples bootstrapped within each state. b_boot_withinstatecounty_lower (or upper) gives respectively the 95% lower (or upper) bound of b estimated from 500 samples bootstrapped within each combination of state and county. (XLSX)b与b_se的定义详见S30表。b_boot_withinstate_lower（或上限）分别给出了在每个州内通过500次自助抽样得到的b估计值的95%置信下限（或上限）。b_boot_withinstatecounty_lower（或上限）分别给出了在每个州-县组合内通过500次自助抽样得到的b估计值的95%置信下限（或上限）。(XLSX)