Added ORDER BY clauses to *byYear queries to return the series in proper order for graphing.

Conflicts:
	inst/sql/sql_server/export/drugera/sqlPrevalenceByGenderAgeYear.sql
	inst/sql/sql_server/export/drugera/sqlPrevalenceByMonth.sql
	inst/sql/sql_server/export/observation/sqlPrevalenceByGenderAgeYear.sql
	inst/sql/sql_server/export/observation/sqlPrevalenceByMonth.sql