Year	Traits	PPP	SPP	SSP		TGW		YIELD
2012	PPP	1.000	−0.058	0.106		−0.139		0.256^**
	SPP			0.490^**		0.004		0.783^**
	SSP					−0.034		0.681^**
	TGW							0.194^*
	YIELD							1.000
2013	PPP	1.000	−0.059	−2.09^*	−0.113		0.119
	SPP			0.835^**	−2.00^*		0.837^**
	SSP				−0.111		0.846^**
	TGW						0.194^*
	YIELD						1.000