step probe yy yy_sd tt tt_sd ty ty_sd yt yt_sd 10000 0.2753 0.7575 0.0358 0.5877 0.0045 0.5724 0.0202 0.5307 0.0105 35000 0.3636 0.8290 0.0099 0.5819 0.0184 0.6380 0.0233 0.5455 0.0017 40000 0.3834 0.7934 0.0135 0.6074 0.0161 0.6651 0.0377 0.5472 0.0057