153   , "2005-02-28 + -10 * year (clip) = 1995-02-28"  function
154   , "2004-02-29 + -10 * year (clip) = 1994-02-28"  function
155   , "2004-01-31 + -10 * year (clip) = 1994-01-31"  function
156   , "2004-12-31 + -10 * year (clip) = 1994-12-31"  function
157   , "2005-07-01 + -10 * year (clip) = 1995-07-01"  function
158   , "2005-04-21 + -10 * year (clip) = 1995-04-21"  function
159   , "2005-06-30 + -10 * year (clip) = 1995-06-30"  function
160   , "2005-02-28 + -4 * year (clip) = 2001-02-28"  function
161   , "2004-02-29 + -4 * year (clip) = 2000-02-29"  function
162   , "2004-01-31 + -4 * year (clip) = 2000-01-31"  function
163   , "2004-12-31 + -4 * year (clip) = 2000-12-31"  function
164   , "2005-07-01 + -4 * year (clip) = 2001-07-01"  function
165   , "2005-04-21 + -4 * year (clip) = 2001-04-21"  function
166   , "2005-06-30 + -4 * year (clip) = 2001-06-30"  function
167   , "2005-02-28 + -1 * year (clip) = 2004-02-28"  function
168   , "2004-02-29 + -1 * year (clip) = 2003-02-28"  function
169   , "2004-01-31 + -1 * year (clip) = 2003-01-31"  function
170   , "2004-12-31 + -1 * year (clip) = 2003-12-31"  function
171   , "2005-07-01 + -1 * year (clip) = 2004-07-01"  function
172   , "2005-04-21 + -1 * year (clip) = 2004-04-21"  function
173   , "2005-06-30 + -1 * year (clip) = 2004-06-30"  function
202   , "2005-02-28 + -10 * year (roll over) = 1995-02-28"  function
203   , "2004-02-29 + -10 * year (roll over) = 1994-03-01"  function
204   , "2004-01-31 + -10 * year (roll over) = 1994-01-31"  function
205   , "2004-12-31 + -10 * year (roll over) = 1994-12-31"  function
206   , "2005-07-01 + -10 * year (roll over) = 1995-07-01"  function
207   , "2005-04-21 + -10 * year (roll over) = 1995-04-21"  function
208   , "2005-06-30 + -10 * year (roll over) = 1995-06-30"  function
209   , "2005-02-28 + -4 * year (roll over) = 2001-02-28"  function
210   , "2004-02-29 + -4 * year (roll over) = 2000-02-29"  function
211   , "2004-01-31 + -4 * year (roll over) = 2000-01-31"  function
212   , "2004-12-31 + -4 * year (roll over) = 2000-12-31"  function
213   , "2005-07-01 + -4 * year (roll over) = 2001-07-01"  function
214   , "2005-04-21 + -4 * year (roll over) = 2001-04-21"  function
215   , "2005-06-30 + -4 * year (roll over) = 2001-06-30"  function
216   , "2005-02-28 + -1 * year (roll over) = 2004-02-28"  function
217   , "2004-02-29 + -1 * year (roll over) = 2003-03-01"  function
218   , "2004-01-31 + -1 * year (roll over) = 2003-01-31"  function
219   , "2004-12-31 + -1 * year (roll over) = 2003-12-31"  function
220   , "2005-07-01 + -1 * year (roll over) = 2004-07-01"  function
221   , "2005-04-21 + -1 * year (roll over) = 2004-04-21"  function
222   , "2005-06-30 + -1 * year (roll over) = 2004-06-30"  function