Year: 2019 ( top )

Oct ( N = 912 )

Nov ( N = 465 )

Year: 2017 ( top )

Jan ( N = 381 )

Feb ( N = 806 )

Mar ( N = 1113 )

Apr ( N = 364 )

Jun ( N = 415 )

Jul ( N = 83 )

Year: 2016 ( top )

Jan ( N = 1055 )

Feb ( N = 967 )

Mar ( N = 1024 )

Apr ( N = 1013 )

May ( N = 1021 )

Jun ( N = 1011 )

Jul ( N = 1048 )

Aug ( N = 1054 )

Sep ( N = 1017 )

Oct ( N = 1053 )

Nov ( N = 1017 )

Dec ( N = 1057 )

Year: 2015 ( top )

Jan ( N = 923 )

Feb ( N = 935 )

Mar ( N = 1032 )

Apr ( N = 951 )

May ( N = 982 )

Jun ( N = 1011 )

Jul ( N = 1015 )

Aug ( N = 1044 )

Sep ( N = 1007 )

Oct ( N = 1047 )

Nov ( N = 1016 )

Dec ( N = 1053 )

Year: 2014 ( top )

Jan ( N = 1027 )

Feb ( N = 947 )

Mar ( N = 902 )

Apr ( N = 1024 )

May ( N = 1044 )

Jun ( N = 1013 )

Jul ( N = 1053 )

Aug ( N = 1052 )

Sep ( N = 1012 )

Oct ( N = 1032 )

Nov ( N = 884 )

Dec ( N = 1042 )

Year: 2013 ( top )

Apr ( N = 463 )

May ( N = 1041 )

Jun ( N = 1018 )

Jul ( N = 1042 )

Aug ( N = 1051 )

Sep ( N = 1015 )

Oct ( N = 1051 )

Nov ( N = 961 )

Dec ( N = 1054 )

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© 2012,2019 The University of New Hampshire  •  Durham, NH 03824
This material is based upon work supported by the National Science Foundation under Grant No. EF-1065029. Any opinions, findings, conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.