1 - SDSS DR14 2 - DEEP3 4 - 3DHST 8 - Steidel et al. (2003) 16 - Liu et al. (1999) 32 - Team Keck Tresury Redshift - Wirth et al. (2004) 64 - Reddy et al. (2006) 128 - Cohen et al. (2000), and included references (see Table 1) 256 - Chapman et al. (2004) 512 - Chapman et al. (2005) 1024 - Swinbank et al. (2004) 2048 - Dawson et al. (2001) 4096 - Pope et al. (2008) 8192 - Barger et al. (2003) - sources 1, 3, 7, 12 and 14 (see their table 6) 16384 - Vanden Berk et al. (2000) 32768 - Cowie et al. (2004)