1           1990-11-14.41  Wisniewski et al. (1997) 
 2           1990-11-15.34  Wisniewski et al. (1997) 
 3           2011-08-12.25  
 4           2011-08-13.25  
 5           2014-08-08.40  
 6           2014-08-09.40  
 7           2014-08-10.40  
 8           2014-11-05.29  
 9           2014-11-06.27  
10           2014-11-07.26  
11           2014-11-08.26  
12           2014-11-09.26  
13           2014-11-10.27  
14  1998-10-04--2012-02-02  Lowell