[["( dollars in millions )", "2006", "2005", "2004"], ["net cash provided by operating activities", "$ 1410.5", "$ 1143.3", "$ 1229.0"], ["additions to properties", "-453.1 ( 453.1 )", "-374.2 ( 374.2 )", "-278.6 ( 278.6 )"], ["cash flow", "$ 957.4", "$ 769.1", "$ 950.4"], ["year-over-yearchange", "24.5% ( 24.5 % )", "221219.1% ( 221219.1 % )", ""]]