public String getStats() {
        String res = "";
        res += "<HTML>\n<HEAD>\n" + "<meta http-equiv=\"refresh\" content=\"1\">" + "<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; CHARSET=UTF-8\"/>" + "\n<TITLE>Roulette statistics</TITLE>"
                + "<HEAD>\n<BODY>\n" + "<P>TOTAL SPINS = " + totalSpins + "</P>\n" + "<P>WIN NUMBER = " + roulette.getLastSpinResult() + "</P>\n" + 
                "<P>TIME TO NEXT SPIN = " + getTimeToSpin()
                + "</P>\n" + "<TABLE BORDER=\"1\" BORDERCOLOR=\"#006600\" STYLE=\"background-color:#FFFFCC\" WIDTH=\"100%\" CELLPADDING=\"3\" CELLSPACING=\"3\">\n";

        // table header
        res += "<TR><TD>Name</TD><TD>ID</TD><TD>MONEY</TD><TD>WINS</TD></TR>\n";

        for (Player pl : players.values()) {
            res += "<TR><TD>" + pl.getName() + "</TD><TD>" + pl.getId() + "</TD><TD>" + pl.getMoney() + "</TD><TD>" + pl.getWinBetCount() + "</TD></TR>\n";
        }
        res += "\n</TABLE>\n</BODY>\n</HTML>";
        return res;
    }