Table 2. Numbers of sites and episodes of emamectin benzoate treatment in years 2002 to 2006.

	All treatments		Treatments with necessary pre/post treatment sea lice data
Year	No. of sites	No. of episodes	No. of sites	No. of episodes
2002	22	26	10	10
2003	24	31	18	21
2004	35	56	24	31
2005	31	47	25	30
2006	17	25	13	16
All	54	185	47	108

Figures are presented for all site-wide emamectin benzoate treatment episodes and for episodes with the necessary pre/post treatment sea lice data required for further analysis.