Bar evolution over the last 8 billion years: A constant fraction of strong bars in the gems survey by Jogee, S, Barazza, F, Rix, H, Shlosman, I, Barden, M, Wolf, C, Davies, J, Heyer, I, Beckwith, S, Bell, E, Borch, A, Caldwell, J, Conselice, C, Dahlen, T, Haussler, B, Heymans, C, Jahnke, K, Knapen, J, Laine, S, Lubell, G, Mobasher, B, McIntosh, D, Meisenheimer, K, Peng, C, Ravindranath, S