Plot { Sum "Layer4" { R_Date "Pta 3625" 8850 90; R_Date "OxA 1016" 8810 120; }; Sum "Layer3B" { R_Date "BM 2300" 8690 70; R_Date "OxA 1014" 8600 120; }; Sum "Layer3A" { R_Date "Pta 3650" 8270 80; R_Date "BM 2298" 8250 70; R_Date "RT 650" 8100 100; }; };