IWA 2018 6 4 insufficent data to calculate bias GJX 2018 6 4 bias spectrum <0.6 0.6-0.8 0.8-1.2 1.2-1.4 >1.4 # of GAUGES 0 1 2 0 0 mean bias is 0.833038 PUX 2018 6 4 insufficent data to calculate bias FSX 2018 6 4 insufficent data to calculate bias ESX 2018 6 4 insufficent data to calculate bias MTX 2018 6 4 insufficent data to calculate bias EMX 2018 6 4 insufficent data to calculate bias SFX 2018 6 4 insufficent data to calculate bias ABX 2018 6 4 insufficent data to calculate bias RIW 2018 6 4 insufficent data to calculate bias FTG 2018 6 4 insufficent data to calculate bias EPZ 2018 6 4 insufficent data to calculate bias YUX 2018 6 4 insufficent data to calculate bias LRX 2018 6 4 insufficent data to calculate bias ICX 2018 6 4 insufficent data to calculate bias